Are Headers Worth It?

Thanks to Vincero Watches for sponsoring today’s episode of Money Pit. Visit vincerowatches.com/DonutMedia to get 20% off and free shipping!
One of the most common ways to increase performance on a naturally aspirated engine is to install an exhaust header. They aren’t too expensive, and the install should be pretty easy on the miata. But how much power do they actually make? Today we’re gonna install a set of headers find out!
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[@antoinechartrand483]

Donut putting a little timer during their sponsors is god tier thank you

[@Lucasrules930]

I

[@iam4610]

Agreed - these guys are awesome.

[@Rollermanfromspace]

What's not God tier is the two, unskippable 15 second ads

[@bell3287]

@@Rollermanfromspace Yeah and apparently I should join the navy

[@sebastiang9435]

Bro ongggg

[@azyk46]

"Thats why we got to turbo this thing" The pistons : I dont feel so good

[@ericksanchez7787]

What do you mean 1.6 are very tough engines

[@Vehicular.Shenanigans]

He means rods

[@christiandavila510]

Rods can hold like 250wheel wym

[@compy2273]

Wait I thought he said it was a 94 in the last episode. Aren’t those 1.8s?

[@clipsedrag13]

compression and rods are what matters.

[@dfabove9108]

Wow, this takes me back to 1968 when I bought a Datsun 2000 roadster that had 135 hp stock. I was stationed at Edwards air force base and we had unlimited space to run flat out. I was in the army and one of the civilian engineers (MIT) had a new Porsche 912 targa and we would race in the desert . I could always beat him on top speed (135 mph) but cornering I couldn't keep up. I decided to look into speed equipment and even being a So Cal boy in 1968 Datsun was like what? Luckily I went to Iskendarian looking for parts who sent be to Pete Brock who had an operation sponsored by the Datsun factory to develop racing cars and parts and to support independents like me too go fast in Datsuns ! I bought the factory racing cam, side draft webbers ,factor racing headers and to many small items to mention. I swapped out the stock 560-14" wheels and tires for Minilite magnesium wheels with Goodyear Blu-streak racing tires. The Porsche guy was in shock when we had a chance to go again as my funny little Japanese Datsun with north of 200 HP could go north of 160 mph and corner as good or better than the Porsche! I didn't find out until years later how famous Pete Brock was! I'm still remembering him and his also famous mechanic being regular super helpful guys actually turning wrenches under my hood when I was just a soldier back from Viet Nam stationed at edwards AFB....they treated me like a VIP !

[@kaydnn700]

Amazing story! That’s super cool!

[@REVUPMEDIA]

Thanks for the story !! Would’ve loved to see a Datsun vs Porsche race 😂

[@takeapieandrun]

Magnesium wheels... that was a different time lol.

[@lashlarue7924]

LEGENDARY!!! Thanks for sharing!

[@attunedofficial]

That's such a cool story. I know it's been a while, but do you still have the car? Just curious.

[@MrJeepinZeke]

Don’t forget you can also justify it by it being 1 piece to the whole puzzle. If you add 3-4 mods that give you an extra 3-6 hp that’s not nothing. And to say you’ve modded/customized your car and made it act differently is also cool.

[@adamstreetboyzz]

People forget it’s about making your car your own as well.

[@jonathanpinckney9227]

I was going to comment something similar I heard from a BladedAngel video. He talked about how mods add up over time, and it's not just throwing on one mod and boom, a hundred extra horses.

[@jonathanpinckney9227]

@@adamstreetboyzz Straight up. Mod it how you want it, but do the mods right.

[@718snoopymoe_nyc7]

The word is synergy the combined accumulation of all the mods adding up . That’s fine and ok but if you were to to get a dyno flash tune or Ecutek with headers , performance exhaust & A cool air intake u will see massive gains in HP, Torque & MPG

[@parkour267]

My wallet will disagree

[@JeffOfTheMountains]

10:20 "Yeah I'm kinda worried we might max out the dyno on this one." Destruction: *100*

[@12taskforce]

Didn't have to do him like that lol

[@ps3shakes123]

When stock motorcycles make 2.5x your power..

[@Hope4Today9]

I think the guy was genuinely concern about the RPM (however I doubt his concern was warranted ~ still I don't know his dyno-specs.)

[@DynoPoV]

Ey that’s my name

[@JeffOfTheMountains]

@@Hope4Today9 That's a fair point. It's definitely not the style of dyno I've seen in other videos.

[@brycet464]

I hope this series continues after the miata is “done”, it would be nice to see this done with some other inexpensive tuner cars

[@brettfettbeargaming]

Maybe they'll do this same thing will an older civic 😍

[@YopmanWun]

I agree fully!

[@powerfullance1898]

Or an a chassis

[@dailydrivenf23]

S13/14 after this miata

[@pontiacvibby4418]

They need to do a Vibe GT 👀

[@Locus27]

I love the 240 in its natural habitat, on jack stands, in the background

[@WhatTheHe11isTHAT]

😂😂😂

[@Dudeman9339]

The MOST important thing to do when you change the airflow of any vehicle is to TUNE IT. Just adding headers, exhaust, and intake arent really going to gain you anything without a tune.

[@benwilliams3539]

Yep. You may be getting more air in but not much point without telling the engine it can now also spray in more fuel aswel

[@dr.hugog.hackenbush9443]

Depends on the year and complexity of the ECU as well. Older setups can make gains without fine tuning, but youll allways make the most of what you do with a little fiddling.

[@wolfbloodchain]

Yep agreed. The Miata has a new engine map and will need to be tuned to reflect that

[@jerrodriley4290]

Nah, maf and o2 sensors will adapt. The header just straight up didnt make any power.

[@elijahjames5308]

They did need to tune the car because the header & the intake were changed from the factory configuration. They really should have put a real CAI on. If they tuned the car with that setup, it would have probably gained 5-7 hp realistically.

[@Ando.Official]

“I’m really worried we’re gonna max out the dyno” had me dead 😂

[@Idylla]

Said it so stone cold serious too!

[@k-aw-teksleepysageuni8181]

I was laughing until I scrolled down here...at the end of the video.

[@user-cx4ev9fw1k]

I really wish price per HP for bolton was not so expensive

[@garyg7145]

@@user-cx4ev9fw1k when dealing with such awesome performance that's what it takes.

[@insiditious6203]

I didn’t realize it was a joke at first and was so confused 😂😂 he kept the straightest face to lmao

[@harrisonfulton3559]

“Now that we got it nice and hot, let’s go touch it.” 😂😂😂

[@xanvasanx]

Underrated comment XD

[@maxcactus7]

That's what she said.

[@rowanlewisuk]

And thats how I met your mother

[@Raven-Creations]

I'm surprised you made as much as you did. The weather (temperature and pressure) might have accounted for the difference you saw. The stock header didn't look like a bad design (unlike a lot of the horrible cast iron headers found on many cars), plus you ditched the heat shield, which means you're losing energy from the gases which can reduce the ability to scavenge and you're increasing your air intake temperature.

[@corne6673]

Do you think temperature tape would help?

[@oceanwaves83]

For real that was the most headerish stock manifold I've seen in a minute

[@michaelchristiansen1497]

@@oceanwaves83 Agreed, the factory piece was pretty good. With iron log manifolds the gains would be greater.

[@VQ37MOMO]

I love how much raspier the Miata with the header installed and I'd say it's worth it you got better exhaust gas flow now.

[@PizzaParkersGarage]

The crossover episode we're all looking forward to: Up to Speed on eBay Turbos featuring: The money pit Miata

[@ultraguy8771]

Along with a B2B on the Miata once it's done.

[@HarisAhmedKhann]

@pizzaparkersgarage hey i saw your comment on Car throttle in their latest roast my ride video 🤟🏻

[@lactose7733]

A vid on an eBay turbo would be his hardest challenge cause it wouldn’t fit right at all and he wouldn’t be able to use it without many trails and a lot of error

[@ebayturboproductions6133]

Wutang wooshi bois FTW

[@nrahman975]

Boosted boiz

[@Jamal_sml]

“I’m really worried we’re gonna max out the dyno” LMAO

[@TheAdatto]

Maybe rpm?

[@piero914]

I almost spit out my drink when he said that lolol

[@99Barnyard]

@@TheAdatto Hope that was it was.

[@irwinbonilla-guerra4196]

Coldlight Oracle I think he’s prepping for Turbo old ones maybe wouldn’t handle it?

[@albertoacosta6788]

The only time I laughed in this video lmao

[@stevegrieve3213]

When you do any mods like this or the pod filter, you need to reset your "base idle", how to do this is in the workshop manual, your xtra couple of horsepower may be there & it will run & idle so much better, cheers Steve North Harbour Mazda.

[@gristlevonraben]

Probably right

[@sassydasassquatch5326]

wait North Harbour Mazda in Auckland new Zealand? lol my girl mate jessie works there thats buzzy as

[@Moyle3]

I think it’s worth it! Little things like that with other mods will add up together and yah the look, sound and experience is also worth it!

[@MexicanNamedBrandon]

i just finished re-assembling my engine and I have a piston left over. From my experience building things LEGO has taught me there is always extra pieces when you finish

[@nicom4996]

Hahahahaha a spare part

[@brazgazz]

You're gonna end up with wayy more "spare" parts. 💥🚗⬅️

[@kilobravo6197]

Its okay one piston less is ur weight reducing kit

[@harshalkiranjoshi5485]

They say if you forget installing something, it was probably not that important

[@botandrew1]

*facepalm*

[@JoshD4PREZ]

This is literally the smoothest header install I’ve ever seen lol no bolt cutting, rubber mallet-ing, or cursing.. amazing!

[@aaronthomas6155]

Yeah.....not a very realistic video....

[@TacoPotatoMustang]

Right? lol I remember doing the headers on an LS1 TransAm and it involved much swearing, bloody knuckles, and took close to an entire day

[@DILLYBAR31869]

Dude, I put headers on my new edge mustang GT, took me forever, but I got them on and it sounded AMAZING. Was it worth it? Yep

[@alfredino724]

no tool dropping neither

[@jirivymazal8427]

Yep, this one was really smooth... try something like that on a Busso transverse V6 and you are done with headers for life....

[@overcastfriday81]

What you removed was basically a shorty header...especially when compared to some oem exhausts of the past. Nice test..thx

[@FreemanConcepts]

The original manifold was a really good design for flow, the only reason you probably saw any increase was because you removed the catalytic converter which was probably the only real restriction in the exhaust system

[@TheFRiNgEguitars]

Good point! But also a factor, the longer primary tubes on the header scavenge better in the mid band, increasing torque through the power band.

[@rbm4163]

Looks like that NA had the stock iron head swapped out with the NB 01 header, which is pretty decent. I had a 00 with iron header, swapped it out with the 01 header which I had powder coated and kept the heat shield and have the RoadsterSport mid-pipe and RS4 exhaust along with a CAI and MazdaSpeed intake camshaft. The engine really pulls above 4k and has a nice low burble when cruising around. But, when you are really going in the canyons, it's sonorous and responsive. Stuck with he 01 header so I can pass emissions testing, plus it was cheap and still better than the Iron one.

[@GRIFAbyte101]

"That's why we got to turbo this thing" $400 Headers: Wait, c-cant we talk about this?!

[@Jwall1310]

I bet they supercharge it

[@erty2389]

Justin Wall they really wont

[@saulekaravirs6585]

@@Jwall1310 if the Turbo it, you would still be right to call it supercharged. What we call turbochargers today, used to be called centripetal turbo superchargers. A turbocharger is just a turbine powered supercharger, and the electric turbos you hear about these days are technically not turbos at all, they are just electric powered centripetal superchargers.

[@derrickstorm6976]

Power steering: magically repaired*

[@Donut]

Haha! I found a nice used one for $100 and slammed that in there!

[@reccatyo]

@@Donut So what caused the problem from the last episode?.

[@padrescout]

@@Donut SHHHHHHHH!!!! You fixed it! You fixed it with your mechanical wizardry.

[@Gtank74]

@@Donut Ok, I was worried about that. Glad it's fixed I can't wait for the turbo!

[@austenfaulstich868]

Lol

[@TylerYoungMusic]

I love finding old videos that I didn't need at the time. But can now look back and reference. Thanks guys!

[@winfield841]

So glad I subscribed to this channel! Between this channel and the Scotty Kilmer 1 I feel like I’m damn near a mechanic with all the knowledge I’ve been getting here & there 🙏🏾🙏🏾🙏🏾

[@ShiningXwolf]

While James is still the GOAT, Donut adding Zach to the crew and giving him his own series has been the best thing they've ever done.

[@justincredible5406]

Jeremiah is top dog too though!

[@tommegg8486]

Hey don't forget our milk driven, naturally aspirated Nolan

[@prof.crastinator]

nolan is the sleeper here. But yeah- zach is awesome. They have a good personality spectrum in general.

[@gnrfan713]

Is that a 95 miata? The factory header on those has pretty good flow for a stock header. I think that's why you didn't see much of an increase.

[@ajsimmons1156]

You're not wrong. When he pulled the heat shield, I thought maybe he was wasting his time. Think he would have had better results replacing an unfortunate exhaust manifold.

[@Not_A_Cat]

You don't get any gains from headers on 1.6 or 1.8 miata. 1.8 has a great factory header. 4-2-1 collector flows nicely from factory. Cat delete and free flow muffler = win

[@josecarlossilva648]

I was just thinking that, that engine is pretty good for a stock.

[@ElPants21]

@@ajsimmons1156 key words here are "heat shield" Without heat management the open air filter is sucking hot air. The potential is there but needs improvement.

[@casparharte]

The stock one looked better quality IMO.

[@Biggynotsmall]

I wonder what the numbers on the different types of headers would look like 👀 love all these vids and appreciate you guys passing along the knowledge

[@charlesdavis3923]

Got a set of shorty headers on my 04 tahoe, installed a cold air intake along with the headers and I can't tell that it made any difference performance wise but I never had it on a dyno either. For 185 bucks though, I'd say the headers were well worth it in my opinion. The 3/8 flanges looked really good and the welds are as good as anything I could do with a tig welder on my best day.

[@Ettertube]

Zach: "Now that we got it nice and hot, let's go touch it" me: **gasps with excitement**

[@Sorrymarcel]

That made my day just a lil better 😂

[@Bwp110]

I had to do this when i lost a vband bolt after driving it. Next to some glowing turbos. That was fun.

[@JDG.7R]

"we got to turbo this thing" *piston rods have left the chat*

[@bothijssen1809]

Its a miata, it will last😅

[@nemesis6892]

Lol

[@austinhunter6554]

It will hold up if the engine is tight.

[@dutchvanderlinde658]

Piston rods "have" left the chat

[@hooliegunn6847]

Nah bruh, afrs are everything. If theres no knock, theres no problem.

[@joshuavisser8022]

Love the videos and/or content you guys put out! I am writing this after you pulled out the stock manifold. Honestly am blown away by the the stock piece, as it is incredibly similar to a short tube header already. I wish more manufacturers did that vs running a solid cast iron log type of manifold traditionally seen. I am willing to bet say you gain 3 horsepower consistency from mid through the top of your power curve. Those headers are indeed sexy though!

[@SophiaAphrodite]

I am building a v8 ranger where space is a premium. I thought of shorty headers but I am putting mildly ported GT40p heads on and the factory explorer headers showed to work as well as the shorty's in that 300-400 HP range. Saved me a ton of money.

[@1970HondaCL100]

Zack: "They should take about half a day to install" Anyone who's installed headers: lol

[@zachsteele6964]

Is it difficult?

[@aids9943]

emphasis on should

[@falcon1378]

😂

[@aygwm]

It’s actually pretty easy on a Miata.

[@thecatskitten6302]

Carcaine thank god u said it bc I was going to

[@angelcarcamo3278]

Zach is the CEO of “while we’re in here, might as well...”

[@radenfoxchambers1752]

Yep, that’s pretty much every DIY’er lol

[@alexstromberg7696]

Changing the studs is something you should do

[@Mitchismelon]

@@alexstromberg7696 might as well while you're in there

[@fastinradfordable]

If it ain’t broke... His luck he fucks up the threads and has a leak. No reason to replace studs without a problem or rusty. Also, the average joe should expect to snap a few studs. I want to watch him drill out a steel stud from aluminum head. Nah jk. Im not that mean.

[@Josh-lz3xo]

nooo... that's chrisfix

[@jimr5703]

Older vid, but good info and fun. The stock Mazda part looks really great. Typical engine with log style irons can get 10% gains with long tubes. If you're looking for a few ponies, get rid of that heat soaking under hood air filter. Get your stock box back and use a KnN drop in. Sucking in hot under hood air causes your PCM to pull timing to prevent knock. Also, run a 160 thermostat if your car won't throw a CEL, otherwise a 170 will net you a few ponies as well.

[@caribooskidoo3997]

I always thought it was weird that those are called cold air intakes when really they are hot air intakes.

[@TravisFabel]

When you do this you should also be logging your airflow ratio so that you can see if it runs a little leaner or something...

[@nooknooktyb4922]

Zach: Throws socket in the grass 10 mil: Nooooo not again

[@heytheremr2]

Lawn mower: D:

[@bread8857]

when donut works on cars: everything goes smoothly when I work on cars: finds out the previous owner superglued everything together

[@chimi24]

...fucking rockset

[@BlackringIII]

The car is now 51% bondo

[@isaachaynes6935]

lmao watch the previous episode of money pit

[@nemesis6892]

Loool

[@sl....]

Si wey

[@Tampa_tom]

❤️ seeing the bikes in the background. I’m a Yamaha fan boy but I’ve owned some ninjas too. My buddy had a Honda stunt bike that he tried to destroy daily and it just kept ripping wheels after getting thrown to the ground over and over at stunt practice

[@Demoralized88]

I went with BBK Short Headers on my 2012 Mustang and they really improved daily driving enjoyment in low-mid torque. There was MAYBE some peak HP gains, but torque was noticeably improved. Plus they deepened the exhaust tone, bolted to the stock cats, and were relatively cheap. I very much doubt long-tube Headers gain much peak HP at all, and they typically kill low-mid power.

[@Luke_Edmonds]

Won’t be long until Zach get a spinny turb boi on there

[@lilgangster_savage8292]

BIGBROTHERBASH hopefully

[@mayuravirus6134]

I wouldn't say spiny turbo more like spooly snail boi

[@SuperSilvi1990]

Turbski's bro.

[@Polarity7729]

"Now that we got it nice and hot, lets go touch it!" Literally made me LOL

[@kickballjedi]

Great video. I'm going to replace my headers with shorties because the originals are all rusted out anyway. Glad to know it will give a little hp. My fav part of the video is the "The Thing" music playing in the background.

[@commonisekaihero4745]

Installing headers on my daily lancer gives me some much needed torque and lightens her up a little as well as looking better, So fully worth it in my eyes!

[@JohnzoGhonzo]

Favorite show, Wednesday’s are better with Zach. ❤️

[@N0-Acc3ss]

I wonder what's next?

[@alexz9334]

@@N0-Acc3ss Thursday

[@ctre97]

I'd really like to see some ECU tuning done at some point

[@teachingthecode4651]

I think they tried that is one episode about making it shoot flames... It's pretty limited in that episode. I think it's great that they are working on a car most people could afford and have fun with. It's most interesting to work with limitations.

[@JonarusDraconius]

Some sort of re-tune would have to be in order at some point though - All these parts, and the limited gains from the parts themselves? You could gain so much more from a re-tune that is actually mapped to take full advantage of the parts. That is why on my L36 engine build (Holden Commodore, being Aussie and all), I have every intention of replacing my stock engine management sooner or later, even though my plans don't go beyond "mild daily-driver NA spec". Bonus - A retune with better equipment should not only gain me even more power, but actually make the engine more fuel-efficient too! ~JD

[@ckbhack]

In order to pull this off you really need to go to a standalone. Miata ECUs do not lend them selves to easy tuning.

[@iamsam8446]

An ECU tune will usually net you more ponies than a header, CAI, and catback.

[@geoadhyatmazenkusuma6705]

probably some piggyback would do

[@lucky1time811]

Results are much more substantial when going from manifolds to headers and finishing the exhaust from header to tips. Richard Holdner did a good video on headers, granted it was for LS based, it’s the same concept for all engines.

[@werrigude1711]

Cheers from Australia for all your good work mate🤙

[@matthewb9241]

“Alright now that we got it nice and hot, let’s go touch it” LMFAO, ngl that was pretty funny.

[@KentRodgman]

I snort laughed pretty hard at that one. Because I was just thinking "maybe let it sit with the hood open for a bit" haha

[@callum5687]

Instructions unclear, no longer have fingerprints 😂

[@davidparadis490]

He heated it up to make the bolts easier to extract

[@seangray3982]

"It's about the fun you have installing it!" How's that steering rack, Zach?

[@luischavez1701]

Didn't have to do him dirty like that

[@MaxedOut77]

F

[@josemaribunag7485]

lmaooooo

[@Gon_Vibin]

oof, thats savage

[@derekrigsby2879]

def worth! its all for the love plus the power band is way smoother plus some hp!

[@hotcoffeeamericano]

loved this video. your experiment helps many people. totally worth it

[@TatakaiEX]

as a tuner/dyno operator: if you show up to a dyno with expectations, you're going to leave disappointed LOL

[@pedrorodriguez6998]

Truest comment ever

[@krishnapatel6777]

This is kinda dumb but I had a quick question. I wanna get into cars and stuff (I’m new and don’t have my license yet) and I was wondering how I would find/approach a good tuner in my area?

[@TheChris1299100]

@@krishnapatel6777 I had some luck talking to coworkers, going to car shows, reading forums, and asking folks at performance shops. You've already done the right thing by asking here and I think more qualified people will lend their opinions!

[@tiamarie177]

Krishna Patel why would you be approaching a tuner if you don’t have your license😂😂

[@Eko_Kats]

Yeah, last time wanted to just see how much my 30+ years old Lada 2105 buff pony remaining just to find out they don't have tech to measure old car without plug in cable

[@surajchanderan6946]

This is literally my favourite series by donut🤘

[@segsmacheen5616]

Loving this and loved HiLow.

[@mianriyaan2647]

My 2 d fav after ofcoutstse the past gag podcast

[@andrewg.1127]

This one is like my second. But I love my dude james soooo😂

[@joshuavisser8022]

I also swear I didn't cheat 3.5-4 ponies was not bad. It's an improvement overall and simply just taking the time to put some love in your ride is good enough for me. It would have been neat to see a full stock exhaust vs the catback system and header. Plus there's always the option of a hi-flow cat as well.

[@jpvanstaden2595]

I love the top gear reference at the end

[@Dayashii]

As bladed angel once said: They may not give me as much preformance, but now my corvette sounds like a Ferrari

[@eladiomarquez]

@Prodigy yes

[@eyemastervideo]

While I appreciate this as jest, the reality is you'd have to change the crank shaft to make it sound like a ferrari. :)

[@Dayashii]

Christian A you’ve seen Leone right?

[@eladiomarquez]

@@eyemastervideo but he made it sound like a ferrari with just headers

[@fartglock8551]

@@eyemastervideo watch the video dude! Bladed's set up is mental. Equal length headers make a lot of difference!

[@gonzalocastillo3945]

zack: * wants more powa * Next episode: * how to LS swap your miata *

[@pruviu3577]

I saw one before with a LS engine and it sounds, looks sick

[@skyforgedgaming]

My friends in my car team did this last

[@dan_6915]

A uk dude installed a jaguar 3.0l v6 engine. Sick ride he create.

[@MiGujack3]

@@dan_6915 Yeah, there was also a V12 one in the works just for the lolz Honestly the best swap is a modern V6 or a turbo K series. LS is like doing a budget Dodge Viper, which is fine, but I would like to keep the good handling.

[@samuelgray1487]

@@MiGujack3 aluminium block ls engines don't weigh much more than a b6 (original mx5 engine.)

[@mikecheslock3542]

It also depends on the engine. I know the LS3 in my 5th gen Camaro responded to an intake, headers and a tune like many engines respond to a turbo.

[@SirBoops]

Next ep: Are turbos worth it? After that: Swapping your engine the cheap way

[@mckinnonwolf7877]

Henlo fellow fur friend

[@dell643]

Furry

[@mckinnonwolf7877]

Kudasai yes

[@poopoo8315]

Man i liked this comment but someone replied "hEnLo FuRfReInD" and that is why 2020 exists

[@greasemonkey7221]

@@poopoo8315 agreed

[@maggiecallahan935]

It’s not about the miles per hour, it’s about the smiles per hour 🙂

[@CoDisafishy]

I'd be very sad spending $400 for 4 horsepower haha

[@atcpadi1]

That's why I measure my enjoyment in my car in smiles per gallon. How dare anyone tell me my miles per gallon aren't great lol

[@christianmartinez9442]

It’s about bitches per revs

[@bobthebuilder-nm5fz]

It's about the powa baby!!!

[@teaguethings8442]

Smiles per miles *

[@therealtpain90]

The stock manifold looked to flow pretty well honestly, if you put headers and exhaust on something like my 96 civic there would probably be pretty noticeable gains due to the horribly flowing exhaust on it 🤷🏼‍♂️

[@jimsmith8797]

Congrats! I’ve never had a header go in/out that easily 😂

[@bawkray]

50% of comments: that old header was good other 50%: when you gonna boost it?!?

[@matthiasannaberger2469]

I am waiting for the domebar

[@randombob924]

I love this series bc I’m also in the process of building my ‘93 black NA Miata lol I’d love to see - rollbar/cage - frame rails/braces - racing seats - turbo !!!

[@lilgangster_savage8292]

JW what about a tune to?

[@Donut]

You are in luck, my friend

[@randombob924]

Donut Media ❤️❤️

[@SFH_Jenkins]

Like Zach said, he will touch every part of this miata

[@rkd350z]

I saw butterfly brace sitting in the garage on pwer steering leak episode

[@joshuagibson2474]

Great and informative video thank you so much for teaching me!

[@coelhovinicius140]

I figure intake and exaust mods make more of a difference when complementing something more impactfull like a cam change, kind of letting it breathe that extra air a more agressive setup will try to pull.

[@georgefenner-leitao4318]

Next episode: how to fix a hole in your engine block. Holy shit. Thanks for the likes guys

[@bumblbang3012]

Step 1: Start looking for engine swap ideas...

[@luket7511]

Spray foam

[@jordanbethea1]

Fix it with tape

[@mgz282]

Flex seal is always the answer

[@raylazuli]

Ramen ftw

[@tristan640]

Saw this come up, immediately switched to it

[@maryjosephpushpainnocent8610]

Meto bruh

[@Luke_Edmonds]

Tristan Boro same

[@jarod551]

Sameee

[@owenh727]

Yup

[@dixienormus4230]

Same here

[@frankierwhereyouralwaysast903]

Cool stuff! Keep up the good energy.

[@yubrandomain]

Bought a RX-8 and about to rebuild motor, I’ve had to justify every angle to dip into the Rotary world. So far… I am excited about the adventure!

[@sleeper-up3xy]

OK who doesn’t start their car with open headers. This is like against the law not to do that

[@danielolivera4796]

His already the most popular neighbor on the block, maybe he doesn't want to disturb his neighbors even more than usual

[@DavieJones_Lockr]

uhhh...... I actually do thinknits against the law to start it with an open header lol.... I get what you mean though haha

[@saint-cetacean]

@@DavieJones_Lockr Yeah def illegal in CA: Any model post-1971 you can't run open headers on the street because you're bypassing the cat. Plus if it makes more than 95dB at 3/4 throttle, you're violating noise limitations.

[@danielmorris8461]

Den I//Noble Russkie who cares my car bypasses the cat and I daily

[@yo-no9879]

My tinnitus says otherwise.

[@Thefreakyfreek]

Love how big budget this channel looks and yet it still feels humble and fun not like discovery keep it up dont overdo yourself

[@miteshaswani7983]

The only channel where I will listen to sponsor endorsements.

[@funkmonkeyfun]

Back in the day I had a 2005 Saturn ion level 2. I put a ingen true cold air intake on it and pace setter long tube headers. I raced over a dozen Saturn level two ions and I was literally twice as fast as all of them. Long story short that car with the CAI and long tube headers off the line ran door to door with a vr6 Jetta so yes if you install headers and a intake, with no tune you get a good bit more power.

[@abelgeorge4953]

I really wish science garage came back... That's what brought me to this channel

[@kevenalfonso7574]

Thats what brought me to the channel too 👌🏼

[@JB-ru2zb]

I miss Bart

[@ciinyk_4435]

Same. I saw science garage on snapchat and got hooked.

[@immaliveforever1474]

Facts. It was actually cool getting a breakdown on parts and how they work

[@Chevycamaro-rg6sd]

I’m not sure what video I saw first but I think it was science garage

[@CJTAMBER]

I could feel the pain when he found it out it wasn’t making 115 :(

[@joeymilevoj3134]

I’m new to cars, does he have to tune the car after upgrading a part? Such as the header

[@demitriuswhite3191]

@@joeymilevoj3134 yes

[@joeymilevoj3134]

@@demitriuswhite3191 why didn’t he show him tuning it in the video?

[@boneclubceo4531]

@@joeymilevoj3134 very lengthy and boring process

[@adri1leusha]

I was expecting 130, I though this was a 1.8L

[@jmc2567]

I was surprised the stock manifold was like a small set of headers itself and would have performed quite well.⭐⭐⭐⭐⭐

[@portlandtwowheels7607]

"I am kind of worried we're going to max out the dyno on this one." Best Sarcastic Dyno Guy Ever

[@DefaultGamer101yt]

By the end of this series this miata is gonna be pushing 1000HP

[@Felix-Mueller]

*110HP

[@whorheatoh]

Why, are they planning on crashing it against a Supra?

[@pandaguzman664]

210 hp

[@KalebKronic]

Gonna be a long series gaining 4 hrsprs an episode.

[@edmundrbx6546]

What Miata’s only 100hp +?? I though it is faster than my stock ek9

[@meman24]

"It's not about the buffness of the horses, but the size of their hearts." - The 4 Horses That Could, by J.K Simpin

[@zulmuhamad2299]

Dude, thanks. So much info.

[@larylongprong]

That standard exhaust manifold looks fairly well tuned!

[@UnfiItered]

"Should take 4 hours" Me in my garage on my fifth day trying to get out that last seized bolt just to strip the head.

[@SuperSilvi1990]

You dont really need "All" of the bolts....

[@chunkiermango7982]

Cant be tight if it's a liquid

[@MrZilla500]

2v mustang....hell...

[@SuperSilvi1990]

@@chunkiermango7982 warps aluminum head. "At least the bolt is out"

[@jampacc]

I laughed way too hard at this. Reminds me when I worked on my 01 Mazda protoge. Oh a transmission change should take a couple days. 6 months later 😂😑

[@ShintekBeats]

If it added 0 hp and increased torque, it would still be worth it.

[@MrTheHillfolk]

I definitely wouldn't put something on that causes a loss , break even but sounded better ? Or like you said , more tq would be nice.

[@carswnova]

Heck yeah!!

[@kirbstomp8041]

HP = Torque X RPMs / 5252 sooo............

[@confuse9]

Technically, if you increase torque you must increase horsepower.... just not peak hp.

[@weaksrt4]

@@confuse9 AKA power under or over the curve. Which was mentioned in the video.

[@lifelibertyandthepursuitof7475]

"MO POWO BABY" 😂😂never gets old

[@ThatRedMachinist]

I'd like to see the hp numbers after the intake header and exhaust PLUS a dyno tune, because that's the important part to bring out the real hp gains from all of those mods

[@repbegger5558]

Do an aftermarket ECU episode people always claim you need a retune to make intake and exhaust mods work!

[@strongenough6676]

rep'd

[@frigglebiscuit7484]

as a guy who works with carbs and manual distributor timing, you do. that timing could probably be advanced and make even more hp. stock timing on most older cars is retarded waaaay back. some adjustable cam gears to advance the stock cam about 4 degrees would help too.

[@leebrooks7467]

You need a new tune without it ( fuel injection of course) your car would not run well

[@joshcallaghan9432]

doesn't this prove it though? all these shiny parts and almost xero gain over stock power. Of course it needs a tune.

[@youtubeusername1489]

5:37 "I love it when a plan comes together" *flashbacks to last episode about powersteering*

[@jorgeantonini201]

I like how nobody nor zack has mentioned the steering rack he didn’t fix in the last video. So according to that he’s just running waterfall of ps fluid for a daily now?

[@ihaveabunda]

Agreed. Looks and sounds are pretty worth it

[@bishopm4401]

Don’t forget to add the weight savings from taking that heat shielding off!

[@bcab7955]

Swapping a cast manifold for a steel collector probably saved some weight also, Job should've identified that.

[@killerdeviant]

Brent Cabot those didn’t look like cast iron manifolds to me, looked like a pretty decent header was factory.

[@ryansims9331]

Smaller cat as well. Depending on where its located.

[@luisuribe5432]

Ryan Sims why would you have cats

[@Mike1997nfs]

I was suprised about the sound on load with headers holy shit

[@AZestyNewt]

@@jzxtrd337 not entirely sure what you mean, as the sti is the one with unequal length, while the 15+ wrx has equal length headers. Hence, no subie rumble. They do make unequal length headers for the wrx now, but you lose out on some power since it is less efficient/isnt twin scroll(honestly not 100% on this part). You are correct on the headers changing exhaust by a large amount though.

[@zJoriz]

That money pit animation remains awesome and deserves continued use, I'd say.

[@38llee]

I would say that it's worth it. Working on your car is always fun and work it!

[@anthonidanowski9404]

the factory manifold looks to be just about as good of a design as the aftermarket. id like to see a similar test on a typical cast log manifold vs a 4-2-1 and 4-1 on the same vehicle.

[@zackzittel7683]

For this vehicle. Some respond better to bolt ons like the K20 especially the k24…

[@serlonyoutubeurquebecois2115]

@@zackzittel7683 k20 with header is like 20hp

[@zackzittel7683]

@@serlonyoutubeurquebecois2115 that’s still better 🤷🏼‍♀️ I did a Type S oil pump, k20a cams, 50 degree cam gear, RBC IM, Type S TB, ktuned big tube header, 3” intake and 3” exhaust on my K24a2 swapped civic………. And it wasn’t worth the money. Lol. It was like $1500 before the retune. Only netted like 40hp.

[@dillonmessamore8980]

@@zackzittel7683 from 220 to 260 HP is a pretty sick gain from just bolt ons my dude. Most cars wont even make 20.

[@zackzittel7683]

@@dillonmessamore8980 idk if cams, balanced oil pump, and 50 degree vtc gear are bolt ons since you have to open the engine to do them… but it’s still not terrible. A turbo woulda been more cost effective IMO. And the oil pump/cams vtc combo allows you to get approx 900 more rpm up too which increases hp by default.

[@8.4_litre_V10]

Nolan: God of glasses Zach: God of bang for your buck. James: God of MO' POWAH BABY

[@squidward2991]

Nolan is the god of milk

[@LavendrHoney]

What is Jeremiah?

[@dannysnyder6791]

Racing Beat header, Flyin' Miata full exhaust, and Flyin' Miata light flywheel made my '01 Miata want to rev SO much more. So even if it doesn't make a lot more power, freeing it up makes a world of difference.

[@NDKExhaust]

The stock Header already Good I think. Probably thats why aftermarket header had not much different. Great video, keep it up dude.

[@gbmgaming]

I love how whenever Zack works on the miata his S14 looks really pissed off at him.

[@LandonRoy-cv9rt]

That’s one of the smoothest looking “mid-length” exhaust manifold I’ve seen on a stock engine

[@michaelclark3192]

That's probably why he didn't gain much, stock headers are quite good. The headers on my Honda Jazz(Fit) were like this but going aftermarket with larger diameter pipes that matched the port size of the head gave me more mid range torque which was noticeable.

[@hendrikvanleeuwen9110]

Yeah, probably not a good example. That factory part actually looked an OK design (unlike the cast iron and usually square factory extractors of my youth.)

[@Nub00005]

Check out the factory headers on the 2ZZ-GE Toyota motor, they were so good that 90% of the after market headers for that motor actually robbed you of horsepower.

[@agoradacerto]

Yes. I think they didn't get it much better than this, since the original was already very good designed