Honda Civic Mods | DC Sports Header Install | Loud AF When Combined With Spec-D Catback Exhaust

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 8th & 9th Gen Honda Civic - R18 SOHC I-Vtec - DC Sports Header - Spec-D N1 Catback Exhaust System
In today's video, I will be installing A DC Sports Race Pipe (Header) made for the 8th & 9th Gen Honda Civic Non-Si models (DX, LX, and EX). When combined with the Spec-D Catback Exhaust, this combo is extremely loud!
One benefit of this modification is that the header improves exhaust flow by deleting the catalytic converter. On the flipside, deleting the catalytic converter means that my vehicle is no longer able to meet federal emissions standards and will not pass a smog check &/or state inspection. For this reason, that is why DC Sports states that this modification is intended for off-road use only.
Check out the links below for both the DC Sports Header (Race Pipe) and the tools I used in order to complete the installation. You'll definitely want to pick up an O2 Sensor socket that will fit the A/F ratio sensor for easy removal & installation.
--------------------------------------------------------------------------------------------------------------------
DC Sports Polished Race Pipe (Header) - 2006-2015 Honda Civic 1.8L R18
dcsports.com/p...
Oxygen O2 Sensor Socket - 3/8" Drive - 22mm - Thin Wall Socket
amzn.to/3UtlFQj
--------------------------------------------------------------------------------------------------------------------
Make sure to subscribe if you would like to see more detailed modifications in the future, as I have a long list of parts that currently waiting to be installed.
Also, here are some links to some of the tools that I use in my video (available on Amazon):
Sunex 3/8" Drive Impact Socket Set - 3351
amzn.to/3tzRCua
​
Pocket Screwdriver (set of 10)
amzn.to/3cQltZq
Makita Impact Driver Kit - XDT131
amzn.to/39UZ9vE
Impact Grade Socket Adapter for Impact Drivers
amzn.to/3kVp3UR
3/8-Inch Drive Flex Head Long Ratchet
amzn.to/3FuezW3
--------------------------------------------------------------------------------------------------------------------
Equipment Used To Create KZbin Content:
Canon EOS R Full-Frame Mirrorless Camera - amzn.to/2Oi9YQp
Canon Mount Adapter EF-EOS R - amzn.to/3rtI7LH
Canon EF-S 10-18mm F/4.5-5.6 IS STM Lens - amzn.to/2OuJv1T
Canon LP-E6N Batteries (2-pack) - amzn.to/2MYaWRg
Sony TOUGH SD Card (256GB - V60 - U3) - amzn.to/38ExwWX
Rode VideoMic Pro+ Microphone - amzn.to/38lBNhN
--------------------------------------------------------------------------------------------------------------------
Follow me on social media!
Instagram / levelupmechanics
Facebook / levelupmechanics
Music is from Epidemic Sound www.epidemicso...
--------------------------------------------------------------------------------------------------------------------
DISCLAIMER
Some of the links above are affiliate links, where I earn a small commission if you click on the link and purchase an item. You are not obligated to do so, but it does help fund these videos in hopes of bringing better content and value to you!
As an Amazon Associate I earn from qualifying purchases.
--------------------------------------------------------------------------------------------------------------------
If I missed any important information in the video, make sure to leave a comment and I will respond as soon as I can.
Thank you to everyone who has stopped by to watch my content and subscribe to my channel! I am looking forward to creating more content as the channel continues to grow. Please consider dropping a like if you enjoyed the content (or thought it might be useful) and HIT that subscribe button so I can continue this journey and invest more into this channel!
Thanks again, and I'll see you in the next video! Later!
--------------------------------------------------------------------------------------------------------------------
For sponsorship, product reviews, and collaboration, you can email me here:
[e-mail]
Again, if you have any questions or comments, please leave them down below! Don't forget to like and subscribe if you want to see me continue to upgrade my Toyota Tacoma & Honda Civic in the future!
Thanks for watching!
#DCSports #8thGenSociety #HondaCivic​ #R18 #LevelUpMechanics #Amazon

[@plat7788]

Like way you explained it all finally someone showing a r18 build sounds nice with headers

[@LevelUpMechanics]

Thanks! New content for the R18 is coming soon. There are lots of new upgrades to go over 😁

[@plat7788]

Can’t wait to see it. Are you gonna be doing an egr mod or delete I’ve been tryna figure out if it will be help or not for a lil performance

[@LevelUpMechanics]

There are no plans to delete the EGR at the moment. I may look into it once I pull the trigger on a supercharger. I will be working on the new R18 video this weekend 😁

[@nophaseplayer8609]

Man I finally found a channel that’s for my car and I’m in the process of wrapping it and open my own business with that car. Thanks and keep going. New sub

[@LevelUpMechanics]

I appreciate the support! 🍻 I have a lot more coming soon 😁👍.

[@reignstir]

Thank you please put more mods in future we appreciate all your r18A mods

[@reignstir]

Btw since you upgraded the headers put some thermal wrap on, it will be hot in a long run. I did mine its less heat in the engine bay

[@LevelUpMechanics]

Thanks for the support! I will definitely continue sharing more R18A upgrades on this channel 😁. My next video is for the Honda Civic & it should be a really good one 😄.

[@LevelUpMechanics]

Thank you for the suggestion! I will have to do this, for sure! Gotta keep the engine bay temperature low 😁👊👍

[@reignstir]

@@LevelUpMechanics No Problemo

[@nansnavi3396]

Can’t wait to check this video out after work !! 💪🏼😁 too excited to see the new new !

[@LevelUpMechanics]

Let me know what you think 🤔 😁

[@Strange_Brew]

Good to heat wrap it too. The 18r engine gets cracks in the block right behind the catalytic converter. So it’s good to delete it. You could put a high flow cat below. There is a nice area for that. The 8 th gen ex coupe is 500 lbs lighter than the si. Sedan. That’s why the track racers modify the 18r engine because the car corners better with less weight. I wouldn’t advise installing cat back exhaust unless you are going turbocharged. You will lose some low end power and torque. Better spent money is to buy a Skunk 2 cam than going with the exhaust. You will have a nice sleeper car. Exhaust systems are tuned to the engine. Although they may sound cool, unless it’s tuned to the engine, you will lose power. The stock Honda exhaust and header (especially heat wrapped) tends to scavenge burned fuel out of the cylinders by timing the exhaust pulses with the engine. In a boosted engine that doesn’t matter because air is being blown through the engine.

[@LevelUpMechanics]

Good to know 👍. The plan is to eventually add a supercharger. I just spent 9 days straight installing a lightweight flywheel & clutch from Action Clutch (in addition to a lot of other upgrades). A new Civic video is coming soon... 😁👍

[@514aam]

As long as you keep the Piping at 2.25 or 2.5" you will not loose power nor low end torque (having a high flow cat, a resonator and muffler). When you go full straight you will loose a bit of torque. You really loose it when you go 3"

[@514aam]

@@KDBHonda256 07 and early 08 also... Have seen them crack. Easy fix tho, just some aluminium soldering. Idk why people in the US don't repair them and just swap a new engine in...

[@dennisjackson1674]

I just asked this question thank. I knew there was a way to add a converter 🙏🏾

[@yukonstriker1703]

LMAO the coupe is not 500lbs. lighter. I want what you're 🚬😅

[@KDBHonda256]

Ahhh they respond soo well to modifications.. simple stuff really wakes these r18s up

[@LevelUpMechanics]

Agreed 👍. Once I finish my front exhaust pipe modification and add the skunk2 camshaft that I purchased, I plan to tune the R18 via hondata flashpro. I just wish it wasn't so frickin' hot here in Texas right now 🤣.

[@KDBHonda256]

@@LevelUpMechanics yeah here in Bama it's haf as well. I have not did the cat delete yet but I planned on it. Did it give noticable gains down low and up top or just high in the rpm band?

[@LevelUpMechanics]

I definitely noticed an improvement in mid-to-high rpms 👍. I believe there's some more room for improvement once I tune the motor with the rest of the upgrades...

[@rnkustomz]

@@LevelUpMechanicswould love to see a cam install and tuning video

[@LevelUpMechanics]

The plan is to install the cam within the next month. It's definitely going to be a big project, and I'm excited to see how well I can dial in the performance with a tune. 😁👍

[@Lilnewport-nd4yj]

Literally manual swapping my civic and your videos are super helpful that you 💙🙏🏾post more please

[@LevelUpMechanics]

More Civic videos are coming SOON 😁👍. Thanks for your support!

[@NitroDonkey117]

Thank you for showing off these r18 mods mate

[@LevelUpMechanics]

Anytime 👍. I have A LOT more on the way 😁

[@NitroDonkey117]

@@LevelUpMechanics sweet!

[@chadkirby5438]

Great video bro!! Very clear and detailed!! What wheel size are you using?? What fender flares are those…they look great!!

[@LevelUpMechanics]

Thanks! My wheel size is 18" x 8.5" +35mm offset. They do rub the fenders with 235/40/R18 tires. They probably won't rub with 215's. I purchased the fender flares on Amazon: amzn.to/3U4K964 I will eventually put out an updated video with all the new mods installed over the past year (that I haven't shown yet on my channel). I appreciate the support! 🍻

[@eliezergutierrez2472]

Great video. I have an 08 Civic LX sedan and I found a high flow cat from YitaMotor and I'm getting that instead of the DC header.

[@LevelUpMechanics]

Nice! That is definitely a great option, especially when you want to keep your Civic street-legal. I currently have a Hondata FlashPro to help me bypass the secondary oxygen sensor. I will definitely have to look into the YitaMotor high flow cat if I run into state inspection issues in the future. Thanks for the info!

[@jarvismax7081]

Did u notice any sound difference with yitamotor high flow cats?

[@eliezergutierrez2472]

@@jarvismax7081 I personally haven't bought it for my Civic but I'll let you know if it sounds better or worse than stock.

[@jarvismax7081]

@Eliezer Gutierrez I just installed yitamotor high flow cat and the car pops alot louder

[@eliezergutierrez2472]

@@jarvismax7081 really, did it increase HP or is it just loud?

[@Gilbilly06]

solid content and channel here, I tell you what. 👍 so after the intake, downpipe, and catback, did you have any fuel mapping done?

[@LevelUpMechanics]

Thanks 😁👍. I haven't performed any "tuning" / fuel mapping just yet. I currently have a Skunk2 camshaft waiting to be installed, in addition to a 9th gen Civic Megan Racing front pipe that I will be "modifying" to replace the stock exhaust front pipe. Once I have those two performance upgrades installed, the plan is to tune the R18 in order to maximize the power increases from all of these upgrades installed together. More videos are coming soon 👍.

[@Gilbilly06]

Makes sense 👍 didnt know there were more engine mods coming

[@LevelUpMechanics]

The mods will never stop lol. The end goal will be to hopefully supercharge the R18 😁

[@marcoslovato877]

Thanks for this you're very informative

[@LevelUpMechanics]

No problem! 😁👍 it is always good to know that the video was helpful!

[@owenwright6044]

Thanks for all the 8th gen r18 videos. I have an 06 r18 sedan same blue color and want to do some mods. What do you recommend I do first? Also if I don’t have hondata can I use a defouler without issues? Thanks!

[@LevelUpMechanics]

Intake & exhaust mods are usually pretty fun to do first. A defouler can usually do the trick for the secondary o2 sensor. I've seen it done successfully on numerous occasions 😁 The only reason I have hondata is because the end goal will be to supercharge the R18, and I will need to tune the motor once that happens. Plus, it has a few cool features that I can add to the stock tune (like a rev limiter and launch control) 😁

[@ayymir]

Great vid, did you notice any added power when driving?

[@LevelUpMechanics]

I noticed / felt some mid-range torque and high-end hp improvements. The less restrictive your exhaust is, the better 👍. Granted, I don't see myself outpacing a corvette anytime soon... but my end goal is to supercharge the R18, so this header upgrade will definitely help in the end 😁

[@ayymir]

@@LevelUpMechanics awesome thanks man, i should be good with the exhaust i’m straight piped 😅this def gonna be my next upgrade! i’m also running hondata, did you have to tune anything after installing?

[@LevelUpMechanics]

I have hondata as well. Right now, I'm just running a base map with the secondary o2 sensor option disabled while I do some data-logging. That way the pesky check engine light doesn't come on 😁. Tuning will definitely improve performance numbers. I haven't had any issues with the header installed. All is well 👍😁

[@Queso305]

@@LevelUpMechanics how do you plan to super charge it? I don't know of any of the shelf kits

[@LevelUpMechanics]

I would love to install this centrifugal supercharger system 😁 kraftwerksusa.com/supercharger-systems/sport-compact/kraftwerks-06-11-civic-r18-supercharger-system-w-o-tuning-black-edition.html

[@dirty_aztek619]

Hey kool video when u say it won't pass inspection u mean smog check?

[@LevelUpMechanics]

Yes, that is correct. Deleting the catalytic converter from the exhaust system will technically fail a smog check. I hope this info helps! 😁

[@bradyjones8014]

Great vid ! I have a 09 civic dx coupe with a header from Ali express and a yonaka catback, pops like crazy 😅

[@LevelUpMechanics]

Nice 👍. How do you like the sound of your yonaka catback & Ali Express setup? I've been debating on swapping over to yonaka for a while now... 🤔

[@wirdtuber3812]

what do you prefer cold air intake or short ram intake for my honda civic 2007 ex sedan

[@LevelUpMechanics]

I personally prefer a short ram intake solely to avoid the possibility of hydrolocking the engine when driving through a large puddle / storm. A child air intake is good for top end power (high rpms), and a short ram is better for low-to-mid range torque. 😁👍

[@TreeSawTTV]

Yeah! Your like PaulRrevere

[@LevelUpMechanics]

I don't get it 🤔...

[@aminacdc2613]

please bro try it on the road! we wanna hear it! :D

[@LevelUpMechanics]

I'll see if I can work in some rolling clips on the next video 😁👍

[@vicoe4]

Sound big loud for the road!! u dont have headlight then the sound make the work!

[@LevelUpMechanics]

🤟😁

[@bbsrecon9337]

do you think if i were to get a hondata for an automatic transmission, with a spec d exhaust and injen intake, do you think i will get around the same results as your car without the headers?

[@LevelUpMechanics]

I would think so, yes 👍. While the header does make the exhaust system less restricted, it's only going to free up a few horsepower & torque to the wheels (on an R18 engine). Just doing a catback exhaust and intake upgrade will make your Civic feel a bit more responsive. I have a Hondata Flashpro mainly as an investment for a future supercharger upgrade... and to set a launch limiter and rev limiter... and just so I can tinker around and learn how to tune the Civic 😁.

[@carlosjmarquezf1342]

What brand is the piece and what is the name of the store where I can buy it here in the United States?

[@LevelUpMechanics]

Unfortunately, it looks like DCSPORTS has discontinued this race pipe / header. There are still some "off-brand" versions of this part floating around on the internet. I'd recommend googling "R18 Civic Header ". It's definitely getting harder to source 8th gen civic (non-si) parts these days... best of luck! 😁👍

[@Donnythelatemodeltech]

Very cool 😎

[@LevelUpMechanics]

Thanks 🤣... 🌮👋

[@psykro5735]

DCS-HRS5525 for anyone wondering

[@LevelUpMechanics]

Thanks for sharing the part number 😁👍

[@clownanaround7996]

Clean car

[@LevelUpMechanics]

Thanks 👍

[@sethfellows]

I have an 09 EX coupe. Was just wondering how the exhaust and header affected the engine long term. I have a skunk2 and am considering a header and intake w a tune. What’s your opinion?

[@LevelUpMechanics]

Currently, to date, everything is still holding up strong. If you get a header, just know that your exhaust will naturally sound a bit more raspy (because you are removing restriction via the catalytic converter). Also, you will need a solution to avoid the secondary o2 sensor from throwing a code for the check engine light. A tune will definitely resolve the check engine light issue for the secondary o2 sensor (I use hondata to disable the secondary o2 sensor) and will help maximize your performance. I say go for it! But I may be biased... 🤣.

[@motorsportrazor351]

Hello Friend... first of all, congratulations for the videos you upload. My question is, if you have another link where I can get the Header... I checked the link you posted but I get that it is no longer available.

[@LevelUpMechanics]

I found this one, which looks identical and is available to order: eccppautoparts.com/ss-header-for-civic-ex-lx-dx-06-11-2-4dr-fg-fa-r18a1-mr-ssh-hc06e-dx-ex-l-lx-1-8.html?gad_source=1&gclid=CjwKCAiAqY6tBhAtEiwAHeRopTXXhTiQYpLbhO3b039IRZiaP6iuHmGH6mJJJ_qvHjrh-dSDZJCkwxoCJ40QAvD_BwE

[@saskeamata1994]

Hi i stumbled across your install video ... Did you replace bolts on the downpipe to catback? The wholes on the setup are smaller arent they? Also how did you bolt the 3 bolt flange side to the 2 bolt flange on the downpipe?

[@LevelUpMechanics]

The header came with all of the bolts needed for installation. All of the bolts & nuts were identical to the OEM hardware. The only stock part of my exhaust left to upgrade is the front pipe (the pipe that travels underneath the oil pan and connects the header to the catback exhaust). The stock front pipe 3-hole-flange has 3 studs pressed into it, and they are a bit short for the catback exhaust pipe flange, but there are enough threads on the studs to where you can still use them. I plan to retrofit a 9th gen civic Megan Racing front pipe here in the near future. It is NEXT-TO-IMPOSSIBLE to find any 8th gen civic aftermarket front pipes (with the exception of Weapon-R; they make a header that also includes a front pipe, but it's over $500 and I already have the DC Sports header 😁). I hope this info helps! 😁 👍

[@im_apache5434]

Did you by chance buy all new bolts for your exhaust setup or not? Would you know where to buy them either way?

[@LevelUpMechanics]

Here you go. You should be able to find the part numbers for the bolts / parts you might need: www.hondapartsonline.net/v-2008-honda-civic--lx--1-8l-l4-gas/engine--converter-1-8l

[@im_apache5434]

@@LevelUpMechanics appreciate it love the build

[@LevelUpMechanics]

Thanks! There's a lot more to come... *cough* Skunk2 Camshaft ... *cough* Kraftwerks Supercharger *cough* *cough*

[@bananameowmeow9260]

Hi sir i have some questions Did you tuned your car ? Have you heard that changing to catless headers on r18 engine may result in higher fuel consumption, hardet to reach topspeed and causing engine lag even after tune . What are your opinions on these, i would like to heard some of your opinions.

[@LevelUpMechanics]

Hello 👋. I do have hondata flashpro, but I have not yet tuned the R18. I currently have a skunk2 camshaft waiting to be installed (in addition to a custom front exhaust pipe to complete my exhaust setup). I will be tuning the R18 after I install the remaining components. The end goal will be to add a supercharger. Deleting the catalytic converter can definitely affect fuel consumption since my setup no longer uses the secondary o2 sensor (I used hondata to disable it). As far as "engine lag" is concerned, deleting the cat can alter certain performance aspects of the engine, but mostly, it will improve performance overall. Removing a restrictive catalytic converter and replacing it with a less-restrictive header will benefit performance gains (especially once supercharged). Anytime you can let in more air and remove more exhaust gasses, you are improving engine performance. In the end, it's all about your particular setup. For my instance, this Civic is a daily driver that I use at autocross events. I don't really need top-end speeds, and instead, I prefer modifications that will net me more low-end torque. In the end, I haven't really experienced any major engine-lag issues from my modifications. And until I finally tune the R18, I can only speculate at this point in time. I hope this info is somewhat helpful 😁👍

[@514aam]

​@@LevelUpMechanics the secondary O2 sensor on the R18 does not affect AFR, so no extra Fuel, it's just there to tell you if the cat Is working :D

[@LevelUpMechanics]

@@514aam you are correct 👍.

[@danielgastelum6091]

Can you install the headers without the catback exhaust? If so, is it worth it? Also will the headers fit on a 2015 Honda Civic LX?

[@LevelUpMechanics]

Yes, you can install the header without the catback exhaust (for example, you can install the header to connect to the factory exhaust). There are definitely some pros & cons to this modification. The header definitely helps to eliminate any exhaust flow restrictions created by the catalytic converter, which should allow you to make more power. On the flip side, it will make your exhaust sound really loud. In addition, deleting the catalytic converter will definitely cause some issues in passing a state inspection (which is why this mod states that it is for "off-road use only). Usually, this header for the R18 engine should be compatible for both 8th Gen & 9th Gen Civics (2006-2015). I hope this info helps! 😁👍

[@jgpapi]

I have a honda civic ex coupe 2009 automatic, would this be a recommended first time mod? or should i start slow and do intake, then exhaust then start tweaking the engine

[@LevelUpMechanics]

I would do the simple things first, like the intake & exhaust. While the "header" is also pretty straightforward for the non-si civics, they are harder and harder to find these days.

[@FB6K24Z7]

Did you feel any difference in acceleration on wot after the header install I'm thinking of buying header for my 2013 civic 1.8

[@LevelUpMechanics]

I definitely felt more acceleration @ wot in the higher rpm's. Granted, it's not going to be a drastic improvement, but it is noticeable 😁👍.

[@FB6K24Z7]

@@LevelUpMechanics so you felt a little difference on top end like between 6-6900rpm that's good enough for me thanks 👍

[@LevelUpMechanics]

More like between 4500-6900 rpm's 😁. No problem 👍.

[@thenoobera3245]

There’s no available headers on dc sports or anywhere for my 2014 Honda civic is there any chance you would know what other headers can be compatible for my car I appreciate your work and help for the community!!?

[@LevelUpMechanics]

I'm having a hard time trying to find one that states it would be compatible with the 2014 civic. The 2006-2011 Megan Racing version should bolt up to your 2014. The only difference seems to be the placement of the secondary o2 sensor. Modification might be required to make it work. But there is also the chance that you may not need to modify anything. semotors.com/megan-racing-honda-civic-06-11-ex-lx-stainless-steel-headers-ssh-hc06e/ R18 headers are hard to find these days. I know that Weapon-R also makes one, but it's pricey, and you may have to wait a long time for it. I wish I could have more info for you, but I hope this helps! 😁👍

[@dennisjackson1674]

Is there a way to add a converter along the down pipe or exhaust cause I wanna keep this part on but pass inspection. Gotta be some type of mod

[@LevelUpMechanics]

Stock catalytic converters are typically located close to the engine because they need to be hot in order to work efficiently. The further away the catalytic converter is, the less efficient it becomes (as the exhaust gas temperatures begin to decrease drastically). If you installed an aftermarket catalytic converter further downstream on an exhaust system, you may find it hard to get the catalytic converter hot enough to do its job well enough to meet the vehicle's emission standards. You might be able to get away with a custom front pipe modification (that includes a cat and an o2 sensor bung after the cat), but I am unsure if it would "do the trick" or not...

[@MTF8TL]

so what i’m seeing in the comments is when you install the header you will get a check engine light ?

[@LevelUpMechanics]

That is correct. If you don't do anything to trick the secondary o2 sensor, you will get a check engine light.

[@camillechiong7036]

Hi, I have a civic 2015 1.8l non- SI. I already installed Yonaka cat back. If i get this DC sports race downpipe, do i have to install hondata? And is it legal to use this in city street? Thanks

[@LevelUpMechanics]

You do not "need" hondata to use the header, but it is an option to use as far as managing the check engine light issues when deleting the catalytic converter. Another option is to use an o2 sensor de-fowler (the more affordable option). Technically, the DC Sports Race Pipe is not street-legal. That is why the company states that it is for off-road use only. You will not be able to pass a state inspection emissions / smog test if you delete the catalytic converter. I hope this info helps to answer your questions! 😁

[@thedead782pool4]

will a scanner deleting the check engine do the trick or will it keep coming on?

[@LevelUpMechanics]

The code / check engine light will keep coming back on. The only way to resolve this issue is to either disable the secondary o2 sensor with a tuner (like hondata flashpro) or to install an o2 sensor defouler (which will trick the sensor, keeping it from setting a code). 😁👍

[@jansioriarias3842]

Did this make your car much louder or make the notice annoying or was the difference not that much?

[@LevelUpMechanics]

Definitely louder, for sure. The difference in noise is very noticeable. My catback exhaust is quite loud to begin with, so I'm thinking a yonaka catback exhaust would probably help to tone it down a bit.

[@jansioriarias3842]

I have that exhaust and it sounds great

[@LevelUpMechanics]

Nice 👍. I am definitely considering swapping over to yonaka 😁

[@ShadowFanQuills3]

does the R18 have real vtec?

[@LevelUpMechanics]

Yes and no. Most traditional VTEC engines use VTEC to "change the camshaft settings" in order to increase power / performance in the upper RPM's... Now, while the R18 does have a "VTEC function," it is designed to improve fuel economy instead of performance. VTEC on the R18 "kicks in" only when you're cruising steady at a constant speed in the low-to-mid RPM's to improve your gas mileage. I hope this info helps 😁👍

[@codybenoit394]

So you don't installl the bottom o2 sensor on it at all? Right?

[@LevelUpMechanics]

You install both o2 sensors onto the DCSports header. Otherwise, you would have an exhaust leak and your check engine light would always be on.

[@McDzy]

why picked up the r18 instead of the civic si of this gen? just curious

[@LevelUpMechanics]

Believe me, I would love to get an Si. At the time, though, I needed a vehicle asap, and this one happened to be available @ wholesale price... A lot of people look down on the R18 engine. It kind of reminds me of the 90's where the B-series was king and everyone looked down on the D-series. Fast forward 20+ years, and you can see a lot of D-series builds with crazy power. This is exactly what I intend to do with the R18. The goal is to supercharge the R18 to make a reliable 200-250 WHP as a daily driver / autocross / track car. The next power modification I will be installing (in December) its the skunk2 camshaft. I will also be finalizing my exhaust modifications so that I will have 2.25" ID exhaust system all the way from the cylinder head to the exhaust tip (stock exhaust ID is 1.75"). I plan on finishing a whole bunch of content within the next couple of weeks. Lots of upgrade info to share 😁👍.

[@McDzy]

@@LevelUpMechanics Im excited!! i had an r18 as my first manual car, 06 civic ex to be exact (sedan as well),, then went to an 07 civc si fa5,which got totalled last =( . bought an 08 civic si coupe,.. sold that one and now back to 06 civic si coupe haha.. i was just curious since youve been giving this r18 so much love.. i was hoping to follow you even closer if you had an Si, but your content are amazing nonetheless thats why i keep on tuning in, most upgrades are similar, just different fitment obviously (unless theyre like speakers and coilovers, etc etc).. Im excited for the new content to come out. you put out so much great content, i wish your channel would blow up this next couple of months or so.. youre actually making me want to get an r18 and do similar mods that you have on yours haha! cant wait for your new content !

[@McDzy]

PS i was replacing my valve cover gasket the other day, unfortunately i dropped a small RTV silicone when i was scrapping off the old RTV silicone from the top of the engine (maybe 1 inch long but sort of skinny, not super small, but small enough?) fell inside one of the oil inlets, you think id be okay?? id driving the car for about 30 miles or so and seems to be driving as it did before, you think ill be fine in the long run? thank you

[@LevelUpMechanics]

A lot of my civic upgrades tend to be "Si compatible." The only R18-specific upgrades are usually just related to the powertrain & drivetrain components. For example, the TSX Front brake upgrade is compatible for all trim levels (including the Si). I wish my channel would blow up too 🤣. That way, I could focus more on creating content and less on making a living 😆. I really appreciate the positivity! It is comments like yours that give me the motivation to push forward 👍👍.

[@LevelUpMechanics]

I think you should be fine. It sucks when things like this happen, but it does happen from time to time. Fingers crossed that the rogue RTV makes its way to the oil filter so that it can be disposed of during the next oil change. 🤞😁🤞

[@SV-dk2gw]

Hey level up Is that a si or is it a dx ex or lx

[@LevelUpMechanics]

It's an LX 😁

[@demarionh4895]

Hey I have the same exact civic 2011 lx 4dr but automatic I wanted to do a cold air intake and the catback is the spec d any good? I was looking on eBay and found both on their obviously but I’m not sure if it’s worth it anyone got any tips?

[@LevelUpMechanics]

The cold air intake is definitely an option, but it puts the air filter close to the ground... if you drive through water, you could potentially run the risk of hydrolocking your engine. This is why I chose the short ram intake as opposed to cold air. The Spec-D exhaust is okay for a budget exhaust system, but it can be a bit raspy without the silencer. If you want an option that has less rasp and a deep tone, I would recommend spending slightly more on the yonaka catback exhaust. I hope this info helps! 😁

[@frvnciscom]

What size of rims are those and where did you get that spoiler? I’m building my civic

[@LevelUpMechanics]

The wheels are 18" x 8.5" with a +35mm offset. I would probably recommend a +38mm or +40mm offset so that you won't rub against the fenders & quarter panels. I purchased the spoiler on Amazon, but it is sold by Ikon Motorsports (they have their own website, in addition to selling on Amazon). It's a Mugen Replica spoiler. I hope this info helps! 😁

[@BradyFoster791]

would you be willing to sell the race pipe if you still have it because i ordered one but dc sports don’t make them anymore so i’m not getting it anymore

[@LevelUpMechanics]

That sucks 😞. Unfortunately, I'm still using mine. However, if you Google "R18 Civic Header", there are still a few sites (off-brands) that sell an identical version of this race pipe... It sucks that the DCSPORTS version is discontinued. It's definitely getting harder to source 8th Gen Civic parts (non-si).

[@fenasuarez5439]

Why does it have two holes for the oxygen sensor 1 on the top and one on the bottom

[@LevelUpMechanics]

The oem header + catalytic converter has two holes... one for the main air / fuel ratio sensor (up top) and one for the secondary oxygen sensor (down below). For my setup, I am using an aftermarket wideband o2 sensor for the bottom hole...

[@driveway250]

If you install this it will not pass Emmisons tests, but is there anyway to make it too?

[@LevelUpMechanics]

Technically, you could use hondata to turn off the secondary o2 sensor, or you could use an o2 sensor defouler (for the secondary o2 sensor) to keep your check engine light from coming on. However, state inspection requirements vary from state to state... so even then, you may or may not be able to pass depending on your states rules.

[@collinsreyes2861]

hello, i also have a civic 08 & i just cat deleted it. is it normal to smell funky after changing the cat???

[@LevelUpMechanics]

Yes, it's normal. Your exhaust will smell more like a "racecar." The catalytic converter is no longer there to convert the car's exhaust gasses, such as carbon monoxide, nitric oxide, nitrogen dioxide and hydrocarbons, into less harmful substances like carbon dioxide and water vapour by means of chemical reactions. So deleting the cat will definitely result in a "funky" exhaust smell 😆. I hope this info helps 😁👍

[@collinsreyes2861]

@@LevelUpMechanics thankyouu btw do i need to ecu tune my car after this set up?? thankyou !!

[@LevelUpMechanics]

Tuning can make some improvements, but it isn't absolutely necessary.

[@jasz_bawllz2978]

Hey I was think maybe you had the same problem I’m having problems with the bottom part of the header the connection to the down pipe is there supposed to be a gasket in between them? And the spring bolt aren’t reaching I think.I have the same car and model the down pipe is stock is that maybe why?

[@LevelUpMechanics]

The header should have a donut gasket at the bottom (between the header and the front exhaust pipe). The spring bolts have a "flat lip" halfway down the bolt. This "lip" needs to go through the flange hole on the front pipe so that the "lip" will sit flush against the header flange. Hopefully this info will help! 😁👍

[@eze8024]

Is the cat that gets deleted, the inly xat in the exhaust system, ir is there a downstream cat?

[@LevelUpMechanics]

There is only one catalytic converter 👍

[@LevelUpMechanics]

There is only one catalytic converter for the exhaust system on this Civic 😁👍

[@asassinyt3904]

Hello there I have a 09 Civic Lx Coupé non Si I Wanna know where you got that any link and I have a straight pipe that’s it if I install that would I have a 02 sensor on?

[@LevelUpMechanics]

Here is the link for the header... dcsports.com/products/dc-sports-polished-race-pipe-06-15-honda-civic-18l?rq=yr_2008~mk_honda~md_civic~rj_1-8l The header is designed to use both of the factory o2 sensors. However, you might have a check engine light come on for the secondary o2 sensor (code p0420). To get around this issue, you could use either an o2 sensor defowler (cheaper option) or you could use hondata flashpro to correct this issue. I hope this info helps! 😁

[@asassinyt3904]

@@LevelUpMechanics Yes it helped me a lot thank you so much!!!

[@LevelUpMechanics]

Anytime 👊 👍 😁

[@alessandropiazza4224]

The header is no longer available. I got a 2013 LX. Now DC sports only has 2.4L headers

[@LevelUpMechanics]

Well that sucks 👎. It's getting harder & harder to find quality aftermarket parts for the 8th Gen (non Si). 😕

[@ramonrosas7592]

Is it bad to put it in D3 it backfires a lot when going like 50

[@LevelUpMechanics]

No, you should be fine. What you're experiencing is most likely just a change in exhaust pressure (and not a true "backfire" condition). Usually, exhaust popping is actually from lack of back pressure when the throttle is closed. Performance exhausts normally are more free-flowing and promote less back pressure for more top-end power. Engine exhaust gases actually pulse into the whole exhaust (called exhaust resonance). When going full throttle, exhaust gases are flowing/pulsing really fast, and when there's a change in throttle, the exhaust flow/pulse is dramatically reduced. When this happens, the slow pulses collide with the fast pulses in the latter part of the exhaust, causing a popping sound.

[@Fa5Squad]

I got a dc header and spec d exhaust on my integra lol

[@LevelUpMechanics]

Nice 👊 👍! How do you like your setup? I'd imagine that it sounds just as loud as my civic 🤣.

[@Fa5Squad]

@@LevelUpMechanics i like it but the mufflers too big needs a proper stainless exhaust lol i only got it cuz the stock one had holes and it was 100 bucks. Your car sounds diff cuz of the exhaust port and its single cam

[@reviewstestdrives779]

I have almost identical build on my 06 Ex.. I was wondering it is hard to value this car the way it sits with all the Mods I’m considering selling mine during tax season I was thinking ask 8-10k would you that’s too low to ask in the current market?

[@LevelUpMechanics]

If it were me, I would look to see what my Kelly Blue Book (KBB) value is online and go from there. I paid $4k for mine a little over a year ago and I'm sure I've put another $4k into upgrades and repairs since then. I wouldn't expect someone else to pay full retail for all of my mods just because the value of those mods depreciate over time (just like a vehicle does). However, there is always "the exception to every rule", so I hope you receive the maximum value for yours 😁👍

[@Alexei55555]

Link on Dc sport parts nothing fund for civic 2005-2010

[@LevelUpMechanics]

Unfortunately, it looks like it's discontinued 😔

[@TaylorMadejdm1975]

Too loud! But you could take a oem RSX type S muffler that flows 200hp on the Rsx, and it would be much more enjoyable to drive! 🍻

[@LevelUpMechanics]

Yeah, my exhaust setup is definitely loud... all bark and no bite 🤣 🤣 🤣

[@adrianau4246]

What are the other ways to trick the ecu without hondata ?

[@LevelUpMechanics]

Using an o2 sensor defouler is a low-cost option that typically works well 😁👍

[@adrianau4246]

@@LevelUpMechanics what size do you need typically for 9th gen civic?

[@LevelUpMechanics]

@adrianau4246 any standard "defouler" should do the trick, like this one (for example): bloxracing.com/products/02-diagnostic-plug-defowler?variant=37132466454700&currency=USD&gclid=CjwKCAjwvfmoBhAwEiwAG2tqzNE9iYo5n5yTaS_NSrVcms6W4PEWX0eJdq-Mdg9NnL_zQzkonKfH5RoCnusQAvD_BwE

[@junkyarddog42069]

Can you bolt the header to the stock downpipe?

[@LevelUpMechanics]

Yes, it is a 100% bolt-on upgrade. The header bolts directly onto the stock front pipe (down pipe). 👍

[@jaybeano]

how u got around the check engine light coming on after u changed it?

[@LevelUpMechanics]

Technically, there are 2 ways. I use hondata, which is the expensive option. The 2nd option is to use an o2 sensor "defouler", which is much more affordable. I would highly recommend searching youtube for an o2 sensor defouler video. I hope this info helps! 😁

[@jansioriarias3842]

Can you pass the inspection after you do this

[@LevelUpMechanics]

@JANSIORI ARIAS it depends on where you live. There are different "rules" for different states (and sometimes counties). Generally speaking, though, deleting the catalytic converter will usually result in failing a state inspection. That's why DC Sports states that this item is intended for "off-road use only".

[@jaybeano]

@@LevelUpMechanics do you know the size for the civic defouler is it 22mm?

[@LevelUpMechanics]

I am not sure. I didn't put one on mine.

[@waverider5751]

I went to DC, and that header isn’t available for my ‘08 Civic LX. It doesn’t have it available for this engine either, I searched pretty thoroughly. Is there another way to get these headers?

[@LevelUpMechanics]

It looks like it's either out-of-stock or possibly discontinued. You may have to go hunting on Google to try and find a company that may have some of them still in stock... Here is a link to a different brand that looks identical (although I am unsure about the quality of the welding) : www.cncest.com/products/t-304-racing-exhaust-header-stainless-steel-for-1-8l-r18a-honda-civic-2006-2011?gad=1&gclid=CjwKCAjw2K6lBhBXEiwA5RjtCQvGp5BwDU1TO8rmXY4SBew4UVpODnz5gEh_CQDkg58_QytntBaNuBoCLOsQAvD_BwE I wish that I could be of more help, but I do not know why DC Sports removed this item from their website.

[@kentrell.e.green223]

what rear spoiler is that?

[@LevelUpMechanics]

It is a Mugen style replica spoiler from Ikon Motorsports 👍

[@ashtoncortez4585]

Is it required to get new gaskets or can I just run with the old ones? Mine has 127k miles

[@LevelUpMechanics]

The DCSports header does include the 2 main gaskets (exhaust manifold gasket and exhaust pipe "donut" gasket). My old EGR pipe gaskets were in pretty decent condition when I did this upgrade, so you might be able to get away with it. I really wanted to make sure that I wouldn't have any exhaust leaks, so I bought all of the exhaust gaskets to have on hand, just in case.

[@ashtoncortez4585]

@@LevelUpMechanics Appreciate it man, very informative video as well, dropped a like

[@LevelUpMechanics]

I appreciate the support! 👊👍

[@ashtoncortez4585]

@@LevelUpMechanics So I installed this but I have an exhaust leak where the donut gasket is. Any fix to this? It looks like there’s a noticeable gap between the DC sports header and the midpipe where you install the spring-loaded screws

[@LevelUpMechanics]

Did you use the oem donut gasket or the DCSports donut gasket? Also, you should make sure that the spring bolts are installed correctly... The spring bolt is comprised of 2 pieces... the bolt itself, and the spring. The bolt has a lip on it, located by the threads, and then a smooth extension leading up to the bolt "head". The lip of this bolt needs to go through the midpipe flange and sit flush against the header flange. The spring needs to press against both the bolt head and the midpipe flange. I noticed that when I first tried to install these spring bolts, the lip of the bolt was actually catching against the midpipe flange (instead of going through the midpipe flange and mating flush against the header flange). This caused a similar issue for me, and it can create an exhaust leak as a result. It was kind of a pain in the butt to get the spring bolts lined up correctly... and this might be the problem you're experiencing...

[@DavidRamirez-sl3wx]

Where can I get that header?

[@LevelUpMechanics]

dcsports.com/products/dc-sports-polished-race-pipe-06-15-honda-civic-18l?rq=yr_2008~mk_honda~md_civic~rj_1-8l Looks like they are currently out of stock... Weapon-R also makes an identical header that includes a "downpipe / front pipe". weapon-r.com/collections/stainless-steel-headers/products/2006-2011-honda-civic-stainless-steel-race-header

[@spaxouss9622]

No hate but why no just by an si if your gonna do all this

[@LevelUpMechanics]

No hate received 😁👍. In all honesty, I purchased this car out of necessity at a time when I needed another vehicle asap. ... So I just ran with it. I would love to have a k20z3 Si motor... but the way I see it is that I am going to build this r18a1 into something that a lot of people don't really see that often. In my opinion, that makes this build a little more unique than everyone else's k-swaps and k-series builds. I am doing things on this car sort of as a practice run, if you want to call it that. I'm stepping out of my comfort zone and gaining experience in areas that I normally don't do that often (like body modifications, headliner restorations, paint, fabricating, etc). I am also spending time building up my skills as a driver at autocross events, and I plan to take this Civic to some track events in 2024. The next vehicle I have on this channel will definitely be of a "higher caliber"... but until then, I want to continue to hone in on my skills as a technician and see what I can do with something that isn't as popular. There are lots of more upgrades coming. A Skunk2 camshaft, more exhaust modifications, and a kraftwerks supercharger are planned for the near future... just to name some anyway. I am far from done 😁👍

[@AngelGonzalez-FA5]

Is there any for the si version bro 🔥

[@LevelUpMechanics]

Any what? Any videos? Technically, the front TSX brake video is also a direct bolt-on upgrade for the Si...

[@LevelUpMechanics]

kzbin.info/www/bejne/Z4eweYt_j5ycmtU

[@LevelUpMechanics]

Anything that isn't related directly to the engine / transmission is potentially an Si video 😁😁😁

[@AngelGonzalez-FA5]

Oh okay Ty bro so the dc header should fit my si then Ty bro relly helps a lot 🤙

[@LevelUpMechanics]

The DC header will not fit the Si. It will only fit the R18 motor. The Si has a K20 motor and has a lot more options for aftermarket support.

[@Kizzzmyazzz]

Do you need to tune ?

[@LevelUpMechanics]

Tuning will maximize the power potential, but it is not necessary for overall use. 😁👍

[@artjr.7226]

Where can I order this one sir?

[@LevelUpMechanics]

Unfortunately, I think that DC Sports may have discontinued this item 😕.

[@blknightsixtyfo]

Must suck to live in an emissions regime.

[@LevelUpMechanics]

Meh... life finds a way 🦕 🦖 😁👍

[@rayesteves12]

Question, did you tune it?

[@LevelUpMechanics]

Not yet. I still have to do an exhaust modification, install the skunk2 camshaft, and install the kraftwerks supercharger. Once installed, I will definitely have to tune the Civic at that point. 😁

[@rayesteves12]

@@LevelUpMechanics did the check engine came on for the O2 sensors? ;-;

[@LevelUpMechanics]

I have a Hondata Flashpro, so I can disable the secondary O2 sensor to keep the check engine light from coming on. Another option is to use an O2 sensor defouler for the secondary O2 sensor...

[@rayesteves12]

@@LevelUpMechanics did you ever drive it without the flash? I just dont wanna have the car acting up (i dont care about the engine light itself) even tho the header has the ports for the sensors, does it still trigger it?

[@LevelUpMechanics]

@rayesteves12 no, I never drove it without the flash. However, the way that the secondary o2 sensor port is designed for this header, it may already act like a "defouler" to keep the check engine light from coming on. If the check engine light does come on, it's not going to hurt the engine in any way. It will, however, potentially make it harder to pass an OBDII state inspection.

[@yaboimyles2825]

What spoiler do you have

[@LevelUpMechanics]

A Mugen replica spoiler from Ikon Motorsports. 👍👍

[@yaboimyles2825]

@@LevelUpMechanics did your trunk already have the holes for the spoiler or did you have to drill them

[@LevelUpMechanics]

I had to drill the holes.

[@yaboimyles2825]

I'm looking to replace every single bolt from the start of the header to the start of the exhaust can you link them

[@LevelUpMechanics]

www.hondapartswholesale.com/v-2008-honda-civic--lx--1-8l-l4-gas/electrical-exhaust-heater-fuel--exhaust-pipe-muffler-1-8l www.hondapartswholesale.com/v-2008-honda-civic--lx--1-8l-l4-gas/engine--converter-1-8l Hopefully these links should help you find what you are looking for 😁👍

[@TheRUSTchronicles]

I was thinking of getting that header but hell naw what too loud and obnoxious.

[@LevelUpMechanics]

Yes. Yes it is 😆. However, I recently replaced my catback exhaust with one from Yonaka. The new exhaust has definitely improved the sound quality 😁👍.

[@Earth-Angel-639]

So raspy, it doesn’t sound good

[@LevelUpMechanics]

It is a bit loud and raspy. Even more so with the DC Sports Race Pipe (header). I welded in a vibrant resonator, which smoothed the tone out quite a bit. I need to make an updated video showing the updated exhaust modifications I made.

[@Earth-Angel-639]

@@LevelUpMechanics do it it would be nice to see.

[@fartblast5058]

Ricer fig

[@LevelUpMechanics]

... coming from a viewer named "Fart Blast" 🤣 🤣 🤣. I hope you have a happy New Year! 🎉🎉🎉

[@FellyLLF]

sounds so bad wtf

[@LevelUpMechanics]

Yeah, my audio capturing skills still need a bit of improvement. Shortly after this video, I cut up the exhaust and welded in a vibrant resonator to help "tone things down" a bit. The resonator definitely helped to smooth out some of the raspy-ness, but it's still very loud. When you delete the catalytic converter on these R18'S, you can always expect a very drastic change in the exhaust tones. There are not a lot of decent exhaust options for the 8th Gen R18 Sedan Civics. I may try yonaka in the near future... 😅

[@Sab-ux2sw]

Good stuff. Best YT views provider -> P R O M O S M!

[@LevelUpMechanics]

Thanks 👊 👍

[@adnerflores2827]

a question with the installation dc sport header does not turn on the check engine light on the dashboard??

[@LevelUpMechanics]

The check engine light will turn on with the DCSports header (which is why the company states that it is for "off-road use only"). However, you can avoid CEL issues with the secondary o2 sensor by using an o2 sensor defouler or a tuning solution (like Hondata Flashpro). I hope this info helps! 😁👍