2020 Dodge Charger, Headers and intake + Dyno

[@glockmodder]

I love the format of this video very systematic subbed

[@IsmaelTheGreat]

I agree

[@sauronjr9601]

I agree

[@jahbless2810]

I concur

[@danielalfonso1902]

I coincide

[@dhowting]

What a perfect spec!!! Love the blue on the exterior and the red and carbon inside!

[@captain052A]

That dip is when the intake manifold switches from long runner mode to short runner mode.

[@meatball6930]

The JLT filter is made by S&B - they’ve been around a long time , they’re definitely not part or made by K and N . The screen for the filter is mostly for water protection. The difference between the scat and hellcat hood is the Hellcat hood has 2 openings in the hood on each side of the scoop so the JLT package for the Hellcat comes with a piece of plastic to half cover the heat extractor hole in the hood and then the filter sleeve is just an extra layer of protection if water gets in. Great video guys

[@LHTPerformance]

Meat Ball I remember from my early motor cycle days. S+B used to be more known the K+N. Along with Hitech Reed valve etc. This was early 80s

[@vincealince_SRT]

The Widebody Scatpack comes with the Hellcat hood and the two heat extractors. The sleeve along with water resistance is also to minimize the build up on the filters, as you have 2 options from JLT. 1. Discardable filter, changed once a year or 2. The Cleanable and reusable filter (need oil kit).

[@_LEONKING_]

I want to point out how good this video is, very detailed, great quality video and most if not all the important information is there. A lot of times I look around for videos like this about parts that I want for my car, but there never is an actually good video about them so I appreciate good material like this.

[@jak3est]

This is the best dyno video for any car. This is the shit we all wanna know lol. Cool to see what the difference in parts make in power

[@hemihead392]

Well done vid that was fun to watch love the comparison runs as you did the changes. Thanks. The dip at around 4800rpm as mentioned below is the variable intake runners activating, Can't really tune that out with the stock intake. Performance page dyno on my '18 SP is fairly accurate and it reads crank HP, not wheel. The next easy thing to do on that (besides a tune) is to clean up the intake manifold and put a true 84mm or 85mm throttle body on it. After that you are pretty much tapped out with doing tuning.

[@ronbo422]

Nice video. That dip is actually the active runners, in the manifold, switching from the long ones (bottom-end torque) to the short ones (high RPM HP).

[@yardman0001]

Great video guys, love the before and after dynos

[@cjfromda504]

I own a 2021 daytona 392 with slp loudmouth catback, Factory mopar cold air intake blue filter, throttle body spacer from airade, and ripp supercharger coil packs with ngk plugs; Putting down 465 to the wheeks.The stock headers for the 392 are tremendous for shorties. Unless you go to long tubes don't change them out unless you wanna waste money for no reason.

[@1maccin]

ID LOVE TO SEE WHAT IT DOES ON A TUNE

[@Luisrico23]

The factory headers are basically short tube headers. Waste of money for just 10 HP I would’ve gone with long tubes n tuned. Good looking car tho and good clean job guys.

[@TsukuyomiPlayz]

Luis Rico-Martinez with the same big ass cats too 🤦🏽‍♂️

[@_LEONKING_]

He would have been better just deleting the cats and would have spent less money, but maybe he is just testing the gains on these parts.

[@jkoolii]

how much hp u think long tube would have over short tube

[@TsukuyomiPlayz]

jkoolii I know for camaros the gain on longtubes is 40 whp with tune

[@jkoolii]

daniel rodriguez i gained 30hp just from a stock 93 tune

[@mototodd]

You guys complaining about the headers are dumb. He cut down Under hood temps, gained 10hp across the entire curve, better sound with no rasp, didn’t have to get a tune, and kept his brand new cars warranty. Plus 90% of you don’t have any mods and can’t afford them.

[@victorwilburn3498]

Moto: My car. You understand. 6 modded cars later, less is more. Drives perfectly, no issues shows what is possible without voiding warranty for just over $2k for everything. The best part is..I am happy. Fascinating to hear people who don't own..my car opine why my $ is wasted????

[@victorwilburn3498]

Moto: I appreciate your comments. All the people who ask..why shorties and I wasted $, miss this point. Dodge tuned the car with about 5% cushion (25 whp +/-) in the calculated tables (speed density) because they know many owners will install CAI's, cat-backs, etc. Change the A/F more than that...CEL/bye bye warranty. My changes were to extract that last bit of HP without upsetting PCM or the warranty. The PCM validates A/F every cold start and CAN adjust fueling up to that 5% w/o a tune. So NO it isn't a change to transform the car or get a 11 second time slip, but it is noticeable and therefore worthwhile to me. Everyone else can do what makes them happy with their cars.

[@ChrisKringle-rp7xc]

You guys have the best work ethic! Keep up the good work, its nice to see a scatpack on your channel.

[@rkalla]

Just want to echo all the compliments here - know it's a lot more work to shoot and perform these multiple interstitial dynos but makes.for an awesome video!

[@WhalerGA]

I really appreciate the way you guys did this dyno test, one piece at a time. It's especially frustrating when ECU tunes are not tested separately. Somebody does a dyno run after doing intake and tune and they show 25hp increase . . . probably 20hp or more due to the tune alone, but there's no way to know w/o testing separately.

[@eddieh9857]

great work as always LHT! love how you do the extra dyno pulls with different setup because i for sure am always curious to see the gains... Thanks for all you guys do always!

[@dlnelson7759]

Finally an honest video with clear speaking people with real information. 👍👍👍

[@spaided]

Great great video. Thanks for doing the one at a time runs to show how each performs.

[@matthewblakeney]

That color scheme is on point .

[@scottm8069]

Great video! Very thorough. It’s good to see how much actual gains we can get from these modifications.

[@tylercouture216]

Someone finally tested the dyno chart in the vehicle finally

[@Mroswaldo16]

That dip is from the runners opening in the intake. Dam this makes me get shorty headers to replace the 6.4l & a afe CAI for my 5.7l 20whp is not bad for no tune, fkr an actual bolt on .

[@uazhar2013]

John I’m back, I was looking at scat pack vids and find my self back here again love it lol

[@jhenry248]

The dip I believe is the active runners switching from long to short runners @4800 rpm.

[@hemihead392]

That is exactly what that dip is.

[@hellkitty1014]

Yes, accurate. We Mopar nuts know "the dip".

[@bluedabear]

Very nice video. I just bought the same car in a 2021. Love this thing.

[@andysgaragetherapy]

Great spec on this car. Sounds great too

[@hellkitty1014]

BEAUTIFULLY-spec'd 392! Rarely see this color combo on lots, which the customer most certainly special-ordered. I agree that the headers aren't going to give the type of gains the owner may be looking for, instead needing long-tubes w/ high-flow cats(noticeable power gains with those two). Getting rid of the restricted exhaust with some Borla ATAKs would add a few more ponies and even better sound. Still, I LOVE what this owner is up to!

[@victorwilburn3498]

Hellkitty: Thanks for you positive comments on my car. Yes it was special ordered and I waited months for it. I installed shorty's intentionally because I wanted to maximize the factory tune and not touch computer/warranty etc. So the..2 changes I made serve that purpose. IF I was a drag racer then long tubes make sense. For a daily drive street car the..2 changes I made result in noticeably more responsive car especially with custom drive mode using several of the track options. Given that the scat uses the same 2.75" exhaust as your Hellcat, more than enough flow for my NA car. Mine is a road trip car so keeping all the things that make it great 1,000 miles from home are more valuable to me. Fascinating how folks criticize something I am happy with, but such is the way of the internet. Enjoy your hellkitty.

[@hellkitty1014]

@@victorwilburn3498 Man, this is one impressive 392! Just like yourself, I special-ordered my 2015 Challenger Hellcat and 2019 392 Widebody. In the case of the Hellcat, they were the hottest ticket in town and I could not find a black model with Sepia interior, 8HP, and sunroof(blame the wife🤣). And for the 2019, the Destroyer Grey with red interior was impossible. So yep, I know what those weeks and months feel like as well! LOL! What is interesting is that in the case of both, the quality and fit/finish has been flawless, so it may have been a crucial benefit to wait. Yes, your headers may not have provided gobs of power increases, they DO aid in fuel economy and better exhaust flow no matter what. Some of these guys commenting here drive Priuses and Civics and are clueless on what real muscle like this feels like! Screw 'em! Nothing in the world like cold-starting that HEMI and listening to that glory! We Mopar guys get it! Enjoy that ride!!!!

[@victorwilburn3498]

Hellkitty: Amen brother! Because I have owned a string of heavily modified cars before this car is ",What have you learned.." car. Dead reliable 500 HP car. In the..real world, the scat pack is more than..enough. Never was about getting the..max power or having the fastest car. Drive the car, enjoy the power and..EVERYWHERE I go spend 10-15 minutes with total strangers asking questions. At the dealer service, Only Hellcat owners (rightly so) get treated better. Bought this car to drive and enjoy not make a shop rich or impress internet trolls. Your right about the cold start symphony. I..do randomly go the garage start it up for no particular reason and..enjoy. On the road, she does what..I want.

[@kendrickqueen7790]

I love it vic

[@Robert-jx8nr]

Lmfao went up 10 horse power and 4 torque, people swear they put a cold air intake and it turns their Honda into a Bugatti

[@Suppress0r]

Well the car wasn't tuned so its not going to gain a whole lot of power

[@williamrose7818]

10 hp gain just from an air intake ain’t that bad I’ll take that 10 hp then get a tune and turn that into 50 hp. A stock 392 with the tune will gain 40 hp because I seen it done

[@williamrose7818]

RobertTheDon He did not give it a proper tune because a stock 392 with a proper tune will gain 40 hp I seen it done time and time again

[@rodhtown]

Yea, they would have to unlock the pcm before they can tune it. Pretty sure most of the gain will be from the jlt intake not the shorty headers after a tune.

[@alonsoharos5295]

@@Robert-jx8nr lol probably because a basic tune will push the car into 550hp crank also you can't tune it he never said or swapped the pcm/ecu

[@JoeHynes284]

really glad i found this channel!

[@Dr_Mike2]

Fantastic job!!! I enjoyed the incremental steps on the Dyno so we can see what each modification actually does to the cars numbers. Please do more videos like this? I just ordered my Charger Scat Pack in "go mango" orange. (There goes any chance of it being a sleeper!!!)

[@Ecoboosttookadump]

I love 1500 dollars worth of 12hp mods

[@milenkogt]

Love the fact the factory 392 manifolds are 1-3/4 primaries with a 3" outlet (factory cats have 3" inlet to 2.75" outlet) and the Hooker are 1-7/8 primaries with 3" collector. Getting a 12whp gain without a tune on stock cats is impressive. I think one of the reasons Hooker used round ports is for the anti reversion effect on the D shaped cylinder head exhaust port during cam overlap. That and the larger primary size and collector design helped too. Would love to see this car tuned with HP tuners and back on your dyno for a final comparison. Great vid guys!

[@brewaire]

It would probably make another 20 HP with a 93 octane tune.

[@milenkogt]

@@brewaire Absolutely, he should have Satera or FRP tune the car if he decides to in the future. The fact that those Hooker shorty headers picked up 12whp kinda shows where FCA limited costs on just reusing the SRT manifolds vs redesigning to a larger 1-7/8 primary for the 392 and Hellcats. Just that change could've put the 392 at an advertised 500hp (flywheel) and similar if not more gains on the hellcat. Also, adding catless mids with those 1-7/8 shorty headers would be even better. Would like to see this widebody with catless mids against another 392 with 1-7/8 longtubes & catless mids, both tuned by same tuner using HPT. Then, both graphs overlaid to see where gains/loss are through out the powerband between the two. Or better yet, the same widebody with LTH if he decides to go that route down the road.

[@bobbyw2066]

If anything the red sock on the filter looks good in the engine bay

[@MoonBoost]

“JLT Intake” the dip in the dyno numbers is the active runner intake manifold design.

[@LHTPerformance]

CamOnlyJabroni That makes sense. I’m not sure what the factory would have it to be such a dip. I’m sure it could be tuned out.

[@alonsoharos5295]

Lol he doesn't know mopars very well "I'm sure it can be tuned out" 🤣

[@LHTPerformance]

Alonso Haros You’re right. I tune Hondas and GMs. That’s why I said ‘ Maybe it can be tuned out ‘ 🤔

[@markurbancowboy]

Great dyno testing the different mods guys! Did the performance pages dyno match the actual rear wheel dyno numbers?

[@vincealince_SRT]

I second this?

[@WhalerGA]

Aren't the performance pages just a calculation of power based on rpm, throttle load, and maybe spark advance (due to changing fuel octane)? It doesn't actually measure power, does it?

[@markurbancowboy]

@@WhalerGA Timothy Kuniskis, Dodge brand chief executive officer said they tested the performance pages at the drag strips and they match pretty accurately with real world numbers.

[@WhalerGA]

@@markurbancowboy He's talking about a stock vehicle presumably? If you put a blower on the thing the performance pages are not going to show a significant increase in power. It's not a built-in dyno. It's an on-screen gadget for owners.

[@markurbancowboy]

@@WhalerGA I was just curious to see if it matched up to what they got. 👍

[@Bens1LE]

Always enjoyable to see how much each mod gains.

[@businessnik]

How about intake, TB, full exhaust, ported manifold, headers, tune...THEN dyno. :)

[@omghalpbro4833]

I hear English,German English, and southern accent in one ... lol. What’s going on there? Nice video also!

[@LHTPerformance]

OMGHalp Bro I know right...Crazy. Should have hired a professional voice over guy.....lol.

[@ronaldsanpedro1976]

I wonder if porting the exhaust port could unlock more power? Also a ecu tuning to tie it all together. Soubds good too with just the header plus stock exhaust.

[@MrMuffanga]

The dip on the dyno is where the intake manifold changes from a short runner to a long runner

[@LHTPerformance]

MrMuffanga OK, Makes sense. I think a little tweaking that could be smoothed out. Customer didn’t want to tune.

[@HallofAesthetics]

Great video, very good job going through all steps while also giving information. Awesome job!

[@calwinsmith7230]

Best sounding charger I've ever heard

[@bdetert82]

In my experience with dodges you dont really see much hp change till you get a tune for new exhaust and intake. Might be a lot of lost hp left in it if he gets a tune to match the changes.

[@calijs9420]

Brian that’s every car since cars where even built. Headers are literally a waste of money If not pared with a tune. Really just a waste on money in general plus it makes the car not as reliable for sure,

[@bdetert82]

@@calijs9420 I think it depends on the ecu. My mercedes ran amazing with new exhaust. tuned it and i think only gained like 7 more hp. But it gained 23 before the tune. But your right your really shouldn't do a major exhaust change unless you tune the fuel at the same time.

[@victorwilburn3498]

Brian: I deliberately have not tuned my car because the point of my changes was maximize the factory tune for street driven car. No doubt, a tune would add..more. Just not what my goals are on a 3 month old car. Thanks for your comments

[@calijs9420]

Victor Wilburn if that’s what you’re after.. then you basically wasted your money and now your car is a little less reliable.

[@bdetert82]

I wouldn't go that far sure its little more power and throws the A/F ratio off a tiny but its pretty harmless. It was dyno proven it made more power without a new tune. Plus you saw that Header it was only a tiny change from the stock one. Its not like he did a cat delete and long tube headers on a stock tune(that would be bad).

[@LorenKyleDiedrich]

Wouldn't long tubes gain more? And is this with or without a tune?

[@KNT1K]

Great vid like always. Iam think that better was to do first air intake test :) . Its much easier to back for stock intake later. U will be have data from 2 intakes with stock exhaust. Next change exhaust( u have already mounted aftermarket intake as second run with stock exhaust) and than just change intake for stock . U will be have full perspective where are restrictions at :) . Great job guys :)

[@kennethpowers8995]

Why did the customer go with a short tube header? He’s leaving a good bit of power on the table vs a good set of 1 3/4 longtubes. I’ve made upwards of 37whp and 19wtq with the Corsa 1 3/4 over stock manifolds on the 6.4. Same goes for the previous 6.1 SRT8 motors with the Corsa longtubes. They’re a great design.

[@victorwilburn3498]

Kenneth: I used Hooker blackheart shorty headers because I intentionally did NOT want to touch the PCM/tune the car and void the warranty on brand new car. OEM "tune" is 500 HP which my simple mods demonstrate. I get that folks think max out every modification, BUT to void warranty on a 500 HP brand new car bristling with technology made no sense to me. On the road the car is trouble free and plenty fast for a daily drive..streetcar. Thanks for your feedback 👍

[@mikew6135]

You also gained that power with either high flow cats or no cats. Please factor that into your numbers. You also most likely had a tune. Another KZbinr put looks long tube and catless mids on his pulled E85 Red-eye and made 20rwhp unturned. Tuned he made 32. I bet the same car with these shorties and Catless mids would make similar power both untuned and tuned

[@218422100]

That's my favorite color!!!!!😍😍😍😍

[@Nathan-gj8ch]

Flow stepping is now known to be better than port-match that's why the headers are round. The larger port makes a step down, the dead space after the port creates a area of low pressure that the flow wants to fall into naturally pulling the flow one way.

[@michaelovitch]

As i know steps and ridges are absolutely not a good thing for flow quality. A low pressure zone will be obtainable by simply enlarging the section area,but if the transition is smooth,the flwo is not disrupted,you don't have turbulences.

[@ITSYOUNGKING1515]

Nice video getting longtube headers, JLT intake, throttle body (idk what size yet), and a 93 tune on my 2018 scatpack this year. So definitely worth seeing some of the gains

[@driveawaywithnate]

Do you notice an increase in speed overall off the line and at rolling speeds like 40/60mph etc?

[@ITSYOUNGKING1515]

@@driveawaywithnate I haven't done any real power adders yet person covid been hard on the pockets with the cost of living going up so much in the last year

[@MidwestMotor]

I'm interested to know why he decided on "shorty" headers and not long-tube?

[@kevinorobio17]

He said he wanted to keep it close to factory & keep his warranty intact. Going the shorty route allows him to do that

[@LHTPerformance]

He didn’t want to change too much of the exhaust system. ie, the factory cats etc as his dealer informed him it wouldn’t upset the warranty.

[@HemivsNinja]

I had a similar finding on my 5.7 using the BBK shooters with round ports on the D shape ports. I ended up going with JBA headers because of that so the ports match D to D. I couldn’t get a clear answer as to if the circle ports would be ok with the D shape.

[@Sak-zo1ui]

The filters by jlt are from s&b

[@LeftyStratPlayer]

I have a few questions: When you showed the stock header @ 5:29, you didn't shine a light inside like you did the Hooker, and yes, I'm aware the Hooker is black inside... but still. Is it because they're practically identical? When you did the stock pull, was it in the morning or afternoon, and was the engine hot? What were the temperature, barometric pressure, relative humidity & engine temperature variations between the stock and modified dyno pulls? What's your location's elevation? Were the modified pulls done on a relatively cold engine in cooler air temperatures? All of these factors do affect power output. I'm asking because they're bone stock Scat Packs all over KZbin pulling dyno numbers within 5-10 RWHP of what this "modded" Charger is. Granted, the black ceramic coating may have added a few hp due to slightly lower operating temperatures compared to stock, and the CAI may have added a few under ideal conditions. But the point is, these cars come off the assembly line with intake/exhaust components that have been precision engineered and fine-tuned by the manufacturer for optimum power output, backpressure, and efficiency. Once upon a time, aftermarket intake/exhaust mods were the way to go for noticeable street performance gains over a stock system, but that advantage ended over a decade ago. In my opinion, the minuscule HP/TQ gains from these mods that will never be noticed in real-world everyday driving aren't anywhere worth the added expense. Other than window & taillight tint, and a de-badge, I'll leave my Scat Pack factory stock.

[@LHTPerformance]

First off, there’s no sale pitch here. I don’t sell these parts or try to. I simply showed what the customer provided. The did the dyno first thing in morning both times. It could be impossible to get the exact same conditions each time. The dyno does correction for some of these conditions so the results are fairly close. You could possibly contact the company that builds the intake and header and share your theory too. The customer bought the parts and is happy with the results. That’s all the matters at the end of the day. The Customer!

[@Mr.Beastforpresident]

Great thorough job on videos!!! 👌👍 Especially on covering the product be installed and comparing stock-to-aftermarket. Does this trim model require premium fuel?

[@victorwilburn3498]

Yes. Premium is recommended by Dodge. I deliberately did..NOT tune the car because the factory tune works very well for a..street driven car. My changes just maximize the factory setup.

[@chadleblanc1800]

Y’all never said if the factory Dyno was close or way off

[@DirtDude117]

Intake sock really doesn't do much besides keep debris and some water out to save your MAP sensors. The 370 intake seems to have a lot of issues without it and the GT350 has shown some longevity results by using them. Also at the track it helps on the K&N S2000 filter to keep stuff out too. Not really worth it on a street car unless it's a 370Z or the 2015+ STI's (but stock is best for those)

[@MultiSmurf67]

super good video i have a 2009 challenger srt8 found the information very nice.

[@TheMick26]

Gorgeous car. Watching now.👍 Edit - Great video, guys. The big Dodge sounds tough and that shade of blue with the widebody looks sharp. What were the results using the "sock" at the end? That reminds me of those filter covers that my buddy used to have on his 4-wheeler back in the days when he raced. Like George mentioned... keeps the water out. Loved the video as always. Have an awesome weekend, guys.

[@LHTPerformance]

TheMick26 The mwah sock didn’t do anything. I

[@TheMick26]

@@LHTPerformance I didn't figure it would. Thanks for the reply John.👍

[@LunchmoneyH]

@@LHTPerformance did the in car Dyno match?

[@LHTPerformance]

It wasn’t far off. It didn’t give an actual number.

[@johnpino5150]

Shorty headers are a waste. Long tube every time

[@hortonj63]

Header slip in and bolt design should be standard in all v8s. Thats fantastic!

[@toohoney8674]

I thought that was typical when running shorties.

[@jtc1964x]

I remember when I bought my 88 Mustang LX 5.0. It was stock at 225HP and I gained 40+HP with simple mods 1. K&N intake 2. Timing up to 14 degress 3. JBA shorties 4. SVO H pipe (catless) 5. Flowmaster 2-chamber mufflers Car sounded great and it was running in the mid to high 13s - which was quick for the day - versus 14.6 stock. 40HP on a 225HP motor is significant gain. Adding 25-30HP on a 485HP motor doesn't seem nearly as significant

[@dexgsand]

Nice video. Pack with Good info too 👍🏽👍🏽

[@AlexK-zt8qb]

Beautiful car

[@EATSLEEPJD]

Good stuff. There’s a KZbinr on here who made the same who 450 with just a mid muffler delete and hellcat intake.

[@D_day1969]

Not knocking the owners choices at all, this is all personal preference. My son has a Widebody Scatpack Charger also. He was basically told by other Scatpack owners .”Don’t waste money on shorty headers you already have them, and don’t buy a 300 dollar CAI just get a Hellcat Box and filter. And you’re good.” So plus parts, labor and dyno time I’m guessing over 1,300 dollars for 23HP? Hmmm. Beautiful looking car though this is the color I wanted my son to get lol . Great info good video!

[@victorwilburn3498]

Dante: My car. I priced out Long tubes, tune etc and when I factor in losing warranty on brand new car. Pass. I have had 6 modded cars and 4 modded motorcycles. Less is more. The goal was to show what was possible with stock tune and retaining warranty on car I special ordered and waited 5 months to get. OEM 392 tune doesn't need help for street car. Custom drive mode with track mode trans setting and the car is transformed..warranty intact. Everyone makes their choice. Hope you son enjoys his.

[@seancramer1096]

Liked the video interested on how much power you would have added when adding a catback exhaust

[@justinhensley9110]

Nobody's noticed, how those headers are for the older model 06-08 models? The newer heads have D shaped ports.

[@widebody_moparmike]

Justin Hensley for the older non vvt 5.7s , the 6.1s are D shaped

[@justinhensley9110]

@@widebody_moparmike Yeah, the "new" headers they were putting on, had the older style 5.7 circle shape ports.

[@Ws6Ms]

good video.. thank you for the comparison test

[@thegarbear05]

So was the new gaskets oval or round didnt show them

[@joeyn7399]

I love this video. Great job.

[@yoyoe2367]

Great video, beautiful car!

[@jonberry950]

I don't know if just missed it. But did that red filter wrap affect the power at all? Looks like he tested it, but didn't comment on it.

[@stefanbell2105]

Why would you put shorty headers when you already had shorty headers. Should have done longtubes

[@alfredough]

Literally and should’ve deleted the cats too (off-road use😂) lol I bet the gain would’ve been much better

[@ryankursehuston]

Have any problems with blowing head gaskets?

[@schwagnum]

Wouldn't having the hood open provide an advantage in airflow with the aftermarket air filters over the stock?

[@LHTPerformance]

John Wagner It’s the way 99.9% of dyno operators test anything . If I closed the hood I’d be criticized too. Oh well

[@jasonn277]

John Wagner not necessarily. You got to think,no matter how much air is moving through the room via fan or a/c. You will never be able to replicate the amount of air that filter encounters at the speeds it’s getting dyno’d at. The air flowing through the grille to the filter when accelerating especially at 100+ mph keeps IAT’s down. Not only that but it provides a lot of air flow. You can’t really replicate that on the dyno, and closing the hood would starve the filter of the air it’s already not getting due to the car being stationary. Not saying that’s 100% why most people dyno with the hood up but I’m pretty sure those factors have a big role in why they do it.

[@PhilippinesLife101]

Too bad there isn't really room to make some long proper headers. Solid gains for a couple bolt on parts. You think it would make some good gains if you port match them?

[@392starsnstripes]

I just saw the video with the blue widebody charger, do you think if a larger throttle body was installed it would help make more power

[@greengodaytona9373]

Awesome video! This is what I was looking for.. what bolt on power can one make without touching the tune and voiding your warranty! I am doing the same on my Daytona 5.7.. it already comes with the mopar cold air intake from factory..but want to replace the log style exhaust manifolds with jba shorty headers. Seeing that the 392 gained 10 rwhp and 10 rwtq across the rpm band going from factory shorty headers to better shorty headers.. the 5.7 should gain the same or more going from the cast iron exhaust manifolds to actual jba shorty headers.. that coupled with my 3.09 gear swap should make for quite a bit more fun.. still retaining all the reliability of the stock car! Can more power be made..yeah.. but it comes with the cost of lower reliability.. and these cars are awesome from factory just the way they are..

[@victorwilburn3498]

Monster: You understand what I did completely. Special ordered, brand new car. NOT toasting my warranty for LT headers and an unlocked PCM tune.

[@africankat1]

love it when u guys test mods on the dyno. i'm wishing you could do more of the same for honda all motor

[@thereflectionartist]

I was reading that the 392 stock intake manifold sucks in the mid range

[@carguy0389]

It does. My friends dad swapped his with an oem hellcat airbox

[@thereflectionartist]

@@carguy0389 I'm speaking of the Intake Plenum itself not the Air Intake

[@carguy0389]

@@thereflectionartist Ohhhh I see you

[@uazhar2013]

I have a dip like that on my s2000 that the tuner couldn’t work out after installing an urge header. I can actually feel the dip which comes around 4500...

[@teaminfiniti4105]

I have shorties myself and I'm pleased with the results. Maybe one day I'll go longtubes

[@Samspade01]

Not on a Dodge charger best way is long tubes

[@teaminfiniti4105]

@@Samspade01 doesn't matter if it's a Charger, if it's a 5.7 it's no difference. But yeah you most definitely get more gains from longtubes. But like I said for me, I'm pleased with the shorties and the rest of the mods done to go with it.

[@teaminfiniti4105]

@@Samspade01 Scat,Cat,Demon, 5.7 longtubes will always give you better performance. That's on any vehicle

[@ohboy2592]

BMOREHEMI 410 better performance up top of the rpm range. Not so much for low and mid range

[@teaminfiniti4105]

@@ohboy2592 Yes I know, I just wasn't able to do the longtubes at the time. But it's been 2.5 yrs with the shorties, so I might pull the trigger soon.

[@jimmiebruessard8428]

Did you get a check engine light for the shorty headers?

[@The_Hi_Life]

Very informative video guys👍 thanks for sharing!!!

[@EddieGarciaVQ]

This charger is nice. I am definitely liking the widebody style very cool

[@jesselent7894]

Stock manifolds ( basically shorty headers) with catless mids are better than almost everything

[@bruticusf22]

Nice! Great video. Would long tube headers add more HP? OR would it be enough to be worth it?

[@LHTPerformance]

According to the comments, long tubes and a tune would make more power. But as mentioned in the video, we installed the parts the customers supplied and wanted. The customer was happy with the results which is what’s the most important.

[@brandonvictor9388]

Is there a gasket between the collector flange bolts??

[@dabeatboxer83]

Waste of $ man. The engine already has shortie headers. Still a very nice ride though.

[@eddieescobar4722]

Nice gains 💪 👏 👌 👍

[@jmx10]

What's up with the CRX in the background?

[@johnporter5453]

Great job. Really informative. How close was the dyno to the dyno on the car tech pages ??

[@kevinhale1036]

Outstanding Vic! Kevin...

[@victorwilburn3498]

Kevin: Completely satisfied with the car. 3 simple changes and 1 custom drive mode later and now it drives like it..should.

[@DnD_Adventures6966]

Did you debadge the Scat Pack or did you order it that way?

[@zdaytona]

So you put mobile one in a 6.4 hemi. Mobile ones website clearly states they do not make a oil compatible with a 6.4 hemi. It may say 0w40 on the bottle but not the correct additive package. MS12633 is what u need to look for expecially if it has MDS.

[@victorwilburn3498]

zdaytona: I have used Mobil One 0w-40 (European car formula) now for just over 8k miles with no issues in the Scat. MDS works fine and I have done two oil changes in that time. For me, Mobil One is my go to oil for all vehicles. Have used it since the early 90's in every car/motorcycle I have had and never had a issue. I broke the Scat in carefully from 7 miles on the clock and it doesn't consume a drop of oil (excluding the catch can oil mist collection) I appreciate your feedback though because I..didn't check before I switched. 👍

[@ryotaryuu]

I put the factory SRT headers on my 5.7 and gained 30hp. Thats why the 5.7 is still a better bargain. The 392 is maxed out from factory.

[@bighomieJ5X]

Soooooooo what are u guys gonna do with that crx 😁😁

[@PaoXiong86]

obviously put a demon in it xD

[@LHTPerformance]

Pao Xiong Based on the all the dodge haters / Experts we may put a hellcat motor in it 🤣🤣

[@milenkogt]

Who did the ceramic coating on those Hooker Blackheart shorties? Looks very good all black.

[@LHTPerformance]

JauntyBishop Our friends are AB Powder Coating

[@Ajay-rw5jy]

Great vid! Thanks for the info!

[@tylercouture216]

so did the in car dyno reflect to the dyno it was hooked up to