JDMuscle Unequal Length Header 2022+ VB Subaru WRX - Sound, Dynos and Installation

Welcome to our exciting new video featuring the JDMuscle YDYBB unequal-length header! If you're a Subaru enthusiast, you know that the iconic "rumble" sound has been a defining characteristic of these vehicles for decades. With their latest design, JDMuscle aims to bring back that classic sound and take performance to the next level. Today, we'll be putting the JDMuscle unequal length header to the test with some dyno runs to see how it performs and sounds. We'll be sharing our thoughts on the design, build quality, and installation process, as well as providing you with some valuable insights on how this header can help you get the most out of your Subaru. So, get ready to rev your engines and join us for an exciting ride with the JDMuscle unequal-length header!
Product Link:
jdmuscleusa.co...
Special thanks to
Anthony from Drunkmann / DMann Tuning
James and Melanie from Felix Performance
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[@AlxRayn]

The unequal headers actually made it sound beefy, very impressed, almost sounds like the 2.5L

[@HeavyMetalWRX]

Well, well, well. We knew it would eventually come out. I love that "subie rumble" but chasing it on the VA WRX was not exactly a fruitful endevour in terms of power and , personally, i dont think it sounded as good as having a 2.5 EJ. Now with the FA24 already having a much deeper exhaust note than the FA20 i think this is not as bad of an upgrade. I like how they are keeping the twinscroll in mind. Ill be keeping an eye AND ear on this one for sure.

[@Nonx47]

Nice to see ya here!

[@HeavyMetalWRX]

@@Nonx47 hey my man how's it going??! I'm just here like everybody else. I want to know what's up with these headers 🤣

[@Nonx47]

@@HeavyMetalWRX haha yeah ain't that the truth. Love the sound, worried about what downsides will come with it. Wish I could just buy two and experiment like crazy with one. Don't have THAT kind of cash though 😅

[@HeavyMetalWRX]

@@Nonx47 I will say I'm not 100% sold. Unequal length is always something that we need to be wary about on FAs. I don't think you're ever going to get the sound that they're trying to emulate, but there definitely is a market for this header.

[@Nonx47]

@@HeavyMetalWRX agreed

[@MrSauceman09]

"performed on a closed course" *Absolutely sends it down the road* lmao. Maybe I'll have to get one of these for my '22

[@SuzukiKid400]

6:36 sounds perfect, great job to that header manufacturer!

[@JaydenET]

You want STI sound, they need to be merged at each bank flange into 2 pipe’s instead of 4. UEL gives you the rumble but the sequential pair gives you the bass. Reducing the runner volume may also increase spool. Killer B UNholy header is the only sequentially paired FA turbo manifold I’ve seen but never heard. Sequential EL is where it’s at personally, but I understand the love for UEL.

[@juanticimo]

Hell yea!! people can complain about slight losses in HP when taking the car to the track, but when its street driven only, thats the sound we are looking for, thanks for the video as well as the development of the part.

[@jdmuscleusa]

And it's actually HP gain! with some tuning you can get the torque back too

[@rmblwgn]

​@@jdmuscleusadoes the horsepower gain come from the fact that the new uel header does not have cats like the OEM header

[@jdmuscleusa]

@@rmblwgn plus larger diameter

[@sleeper.simulant7327]

Diameter is only a part of the equation, and doesn’t guarantee gains if you lose velocity, and I’d be willing to bet the stock turbo isn’t big enough to where larger diameter is required. I’d argue the catalytic converters are the worst restriction. I’d like to see what an EL/twin scroll header of stock diameter will no cats can do, I bet it’ll spool a lot faster and make more power everywhere in the rpm band. UEL’s are a “form” mod, not a “functional” mod. It’s all about sound, not performance…

[@JDMRightHandDrive]

I personally love the sound of the unequal length header. I might have to order myself one. I miss that boxer rumble. Great video🔥

[@bigdumbtruck]

shortening the life of the motor just isn't worth it

[@nikesbeast]

Damn this chassis can handle way more torque than the 2015+

[@weeb0.]

That's why I'm sad there's no STI ver for it

[@weeb0.]

(not counting the tS)

[@aregaminghd]

@@weeb0. honestly i feel like people are irrationally upset about there being no VB STI. sure, we dont get the famous STI driveline with DCCD. really, though? that's all we are missing

[@stormblessed9455]

Yeah agreed on the STI point. It's the best WRX to date. However, low steering feedback(floaty), weaker transmission, and the pads and rotors are very prone to fade. Even still, my WRX is being ordered

[@sleeper.simulant7327]

The connecting rods are literally 3x thicker on the FA24 then the FA20, and the crank is beefier. It can handle that torque

[@MrGsxrme]

I think it's important to make a twin scroll header feeding the twinscroll turbo. Uel or EL should both pickup power. My only worry with running these single scroll headers is exhaust pulse is off and can cause back pressure issues with the cylinders fighting each other on each exhaust stroke. Cylinder 1&3 feed one scroll and 2&4 feed the other. Also becareful of not to go to big on the header pipe size feeding each cylinder, you increase flow but loose velocity.

[@gavinlamp]

unequal length will always be my favorite.

[@blkstang4830]

Just found your channel and just purchased a 22 WRX. Loving the content and can’t wait to get some of these parts on my VB.

[@jdmuscleusa]

It's a great ride! Congrats and let us know if you need anything!

[@Flex_WRX]

Oh my gawd it’s sooo sad Subaru’s don’t sound like that anymore 😭 Thank gawd you’re working on a fix! 😃

[@CodyTheReactor]

Love my 22 VB. Owned so many sports cars over the years. Definitely my favorite one so far.

[@cstorey987]

Why this isn't still a from the factory trademark of WRXs perplexes me. The rumble is worth whatever side effect it is a necessary trait to driving a Subaru. Boy am I glad my stock 2008 wrx came with unequal lengths from the factory. Throw in a catless downpipe, $200 3'' pipe with a cherry bomb at your local small town exhaust shop, and you have one hell of an exhaust note.

[@SaxmanUSMC]

Because it is inefficient and causes issues, and totally defeats the purpose of twin-scroll turbo setups.

[@cstorey987]

Yes, but no rumble :(

[@boxerbaddies]

Sounds so awesome!! JDMUSCLE ALWAYS cooking up some heat!

[@WRXGarage]

Amazing video guys! Super good quality comparison, including all of the power numbers we want to see! P.S... We've been saying "JDM Muscle" too... JDMuscle!!!!

[@jdmuscleusa]

Haha even some of our team member sometimes too looool

[@matthewwain9958]

@@jdmuscleusa side question.... Any chance of a matching front bumper for that fantastic VB Rear bumper you have?

[@jdmuscleusa]

@@matthewwain9958 100% will come out later in the year!

[@matthewwain9958]

@@jdmuscleusa that, is awesome news.

[@WarriorsPhoto]

You guys brought the rumble back. Personally I like the sound of the equal length headers. I know that no one asked. (: Are you all running e85 tunes?

[@tyhyhh]

jeez those are some good looking VBs yall make me want one

[@WLDWRX]

Get one, you wont be disapointed. I have a WRBP VB WRX RS 6MT and love it. Turbosmart dual port bov, Invidia R400 catback and love it.. First WRX too

[@Allwayzworkin]

As the owner of an EJ25, I approve this message 🤙

[@chi_squared]

DrunkMann tuned my STi hatch, great work Anthony

[@Zcypot]

Same powerband as the old VF52, tons of torque then drops off at redline

[@lowery02]

Man o man. Sounds fantastic

[@JordieG8]

Let’s go back in time engendering wise. Brilliant.

[@shiz1125]

Sounds amazing. I need for my VB.

[@darknessislight3689]

Absolutely spectacular ❤

[@CameronAlford]

If you’re not tracking the car how could you not want this despite the power curve change.. sounds clean and I like the sleeper look no wing

[@Starworshipper]

Probably because you'd also need to replace the turbo while you're at it. Not worth.

[@danny2607]

Just got my 22 VB. Fantastic chassis. I’m hoping to get whatever gains i can without a tune for the 1st year or so and also get some proper brakes for such an awesome car. Side note, any info on the wheel/tire set up on that first blue VB?

[@BarbWaltersMusic]

I think it sounds pretty dang good

[@dwightevans8545]

I think this is great. ( I had to have that subie rumble so badly, that I added an Invidia 400 on my 21 STi. My therapy. I like to think it puts me in a trance. Actually louder then I thought). To have more FA's in the new WRXs converted to what the engine should sound like to me, is essential.

[@straitupstaticx]

The Second one sounds great. Is it possible to have a twinscroll V2 UEL header??? If you release one that is twin scroll, virtually no loss of spool or power vs stock and it's price conscious I will buy it IMMEDIATELY! Are you releasing that? Keep me posted!

[@NuhashHossain]

Any updates? It’s been out of stock forever

[@mistamaog]

I'm wondering the same thing

[@benjaminfelder1756]

Same!?

[@KevinD-WRX]

Sounds great guys!

[@jdmuscleusa]

Thank you sirrr

[@Fastmosquito555]

Those guys are awesome!

[@burnie896]

So when are these headers going to be for sale for the VB?

[@robertfox4501]

James inspected my STi and Anthony tuned it! So awesome to see these guys on KZbin!

[@peeposadboy]

Wow. These sound way better than FA20 with UEL Headers. Sounds more like an EJ than the FA20 ever couldve... what size are the runners? Same diameter as the FA20 Tomei UEL Header? Idk from video they look like a smaller diameter than the Tomei. Is it possible to make these with bigger diameter runners? Not much you can do design wise unfortunately... AVO made a "slightly" UEL Header for the FA20 made for their Turbo kit. Basically they just didn't make the unequal side runners as long, idk how they sound or perform... but man this is making me consider a VB over a VA STI lol. I was going to trade my VA WRX in for an sti but idk anymore... those power numbers look very VERY tempting, and probably half the time/money spent if you were to try to get an EJ25 to those power levels. I want Subaru to release the mid life cycle refresh already, hoping they ditch the fenders with the mid life cycle refresh lol.

[@matthewwain9958]

Would like to see the twin scroll version.(Also, regardless of which, that VB looks fast as hell lol).

[@ranran2218]

Looks fast but definitely isn't lol

[@matthewwain9958]

@@ranran2218 pretty sure 450BHP+ qualifies as fast dude. There isn't much on the road that's beating you with that power and that can still actually take corners.

[@roli710]

It’s 415 whp which is almost 485 -500 bhp. Not the fastest but still faster than what most people drive

[@sleeper.simulant7327]

On e85*** which is not available everywhere. This header won’t make past 350 whp on 93... I’m looking forward to my local tuner (VEMS) doing actual tests with these, as it will be unbiased… this manifold will not outperform the stock header, at all… let’s see actual dyno overlays of both cars tuned to the max, let’s see what happens… UEL’s are a ricer mod, pure and simple. You can put UEL’s on a D series Honda, sounds the same as the “boxer” rumble…

[@BDA0531]

It sounds alright but nothing will ever come close to an EJ with UEL

[@Nonx47]

Can anyone explain to me why something like this would negatively effect the engine? Whay in particular would it effect? Is there such a thing as UEL headers with a twin scroll? What does that even mean?

[@alexanisimov300]

Awesome video guys! Is it possible to share the build list of the white WRX? Perhaps you have a link somewhere.

[@pantology]

@James - What gear oil do you recommend for 2017 STI Transmission since Motul is unavailable? Any Cocktail? @Anthony - Sick WRX! Keep up the great work!

[@FatHeadDave]

Makes me sad Subaru has been my favourite car since I was about 7, now I'm 27 and would love to purchase one I'm actually now a fan of the new model after not liking it initially but over here in the UK it's not available!

[@m1zty192]

How do y'all only have 812 subs?! Have another!

[@OnexCygnus]

What’s the wheel spec on the WRB, love that beefy look

[@23wrx._]

Hello i love the sound of the unequal length headers! I’d love to know the compatibility of the uel with the GT WRX

[@ericdavisii3912]

Same but for the outback because it shares Same engine

[@performancepeeps]

I love the sound of the blue car. What was the setup for that car?

[@HalfBit360]

Love the sound of my EJ255, but I keep it stock. I err with performance over aesthetics and sound quality.

[@Taterchip871]

Link to what is all done performance wise to the white test car? Very impressive power out of it and sounds freaking mint.

[@muamoua]

That sounded really good lol

[@barsaf9989]

Remember when everyone was like "efficiency is way better than rumble!" Lol who cares bro. I just want to have fun.

[@MiLLz830]

glad i have a sti so i dont have to worry about doing this lol

[@beerleagueeverything8030]

Great video. A quick ask, the gold RPF1s on the blue car. They look like 17s. Are they the +35 or +45 17x9s?

[@sleepingUgly]

nice rims... would you care to share the wheel spec and setup plz.. thank you

[@Craiggg12345]

And I’m over here loving my killer b headers on my STI. Will never understand the appeal of Rumble.

[@ROVA00]

Yeah to each their own. I personally loved the sound of the unequal headers. But I get that to some people it sounded “rough”.

[@sleeper.simulant7327]

KillerB makes next level products. The only 15-21 FA20 WRX I’ve ever seen make past 350 whp on the stock turbo/93 octane was running KillerB’s. 353 whp, torque was kept low to keep the stock rods happy… I’d be curious to see what KillerB does with this platform. Whatever it is I’m sure it’ll be good!

[@ivtec4fun55]

For the money, I'll never own a Boxxer engine without the rumble. If I wanted a smooth efficient engine, I would have built an AWD K series Honda for half the price.

[@peeposadboy]

Cringe

[@giftedcracker]

Its not really a fair comparison with the stock header. I bet a EL aftermarket performance header will make more power than both of these UEL headers, have faster spool, and be healthier for the engine. Sound is objective, performance is not.

[@poisonberry5111]

Just wondering because I’m still new to the car stuff. Equal headers make more power than unequal right?

[@Bfl8x]

Yes. Equal length = power, flow. Unequal = just for sound, restricted flow unless get tuned.

[@WLDWRX]

@JDMuscle USA any chance of making a twin scroll unequal length header? I think that would be cool, or make a hybrin header where around town it's unequal length but in high revs it smooths out to equal length so you have best of both worlds with power and performance.

[@peeposadboy]

That’s not possible. Lmfao. The flange still has the same twin scroll flange like on the Turbo. Hence why even on EJ’s if you’re upgrading turbo’s and decide to go with a twin scroll, you need to get an equal length header to support it. Just because it’s UEL doesn’t mean that 2nd scroll on the Turbo isn’t doing anything, exhaust gasses still pass through. Lmao. When they say these UEL Headers turn it into a “single scroll” they don’t mean literally. Because of the unequal exhaust pulses it essentially just acts similarly to how a single scroll turbo would, but still not as laggy. Hence the 300-400 rpm lag in boost.

[@jandmmartir4267]

Bro what are the wheel specs for the white wrx??

[@Boom-tj6nn]

Sounds good

[@chazzber]

love it

[@CTR_Dan]

Waiting for Subaru to facelift the wrx so I can buy one and slap one of these bad boys on it

[@CodyTheReactor]

You mean 300$ to paint flares? 💀 good luck… love my 22 after got rid of the plastic.

[@peeposadboy]

What BOV or BPV is on the white WRX?? That thing sounds good

[@IdolFaux]

Can y’all make a twin scroll version? I’d like that.

[@716Flat4]

could the results have something to do with not only the extra displacement, but the smaller boost and lower compression? The honest truth is, the twin scroll really woke up the low end power on these...but they made em sound like hondas. I think if you want to take the 2.4 back to unequal, the best thing to do is probably drop the TS and go with a more classic turbo. I am betting you can push close to 20lbs of boost on these but what do i know, i just watch all these awesome channels spend money on shit i cant afford to have lol.

[@matthewwain9958]

Almosta year later, and they appear to still be on version 2, with no updates. They don't have the divider section either which is a shame.

[@OsightblinderO]

Badass

[@league6767]

To save you time: 4:27

[@Slider712]

Why would you even own a Subaru if you didn't like the UEL sound? 😆 That sound is intoxicating. The second one for sure sounds very much like the Subaru rumble.

[@mrsubaru5367]

❤❤

[@zacharydellamano7199]

will this make the car less reliable?

[@jayepayra3781]

Is it a must to tune the car when I put in an unequal header for my 22 wrx?

[@jdmuscleusa]

Not REQUIRED but recomended

[@jayepayra3781]

@@jdmuscleusa okay 👍 thanks a lot

[@MASViper]

Hi. I have a 3 a.m. idea. Is it possible to do a 4-3-1 UEL headers by combining cylinder 3 and 4 into one and then combine that with both cylinder 1 and 2 in a three to 1?

[@pdubs1408]

what wheels are on the white wrx? they look super clean.

[@videosvideos6243]

Will it work for the 2022 outback wilderness? Where can it be purchased? Do the cats install behind it?

[@basketball1591]

Thought unequal length headers causes the car to run with less power and eventually leading to a blown engine

[@KuyaPow626]

Wait where is your shop at? It would be nice to take the car there so you guys can install mine and ya'll know exactly what you're doing haha

[@jdmuscleusa]

1544 Campus Dr Unit C, Warminster, PA 18974

[@joshstane5926]

When can i get one, is the real question?

[@marckranenburg2507]

Can this UEL header fit the out back wilderness? They have the same 2.4L turbo charged engines

[@spencersinger3209]

Sounds better & made more power…++

[@Chris05STi1982]

Nice!!! What product is it that you use on the exhaust manifold that looks to be that metal heat shield wrap???

[@jdmuscleusa]

This is our signature 3-layer heat shield which is offered as an upgrade :)

[@Chris05STi1982]

@@jdmuscleusa any chance I could purchase separately??

[@jdmuscleusa]

@@Chris05STi1982 This is actually 3 separate pieces hand crafted together so unfortunately no

[@TDT0188]

this stuff is available in flat sheets from other places. work some google-fu

[@shawndejong6699]

Wouldn't a UEL header on a car that isn't designed for one create some serious heat and efficiency issues?

[@dannyboy1984]

Does it fit on a 2022 Outback Wilderness with the same engine????

[@BulliKid]

Base power correct?

[@hikaruuechi777]

Will it also fit the Ascent?

[@shatrel7117]

I have that same license plate 🎖️🪖🫡

[@VictorHernandez-el2sp]

What’s the wheel and tire specs on the both cars?

[@straitupstaticx]

They second one sounds great! But I don't want to lose almost any spool. UEL should spool quicker right? That was the excuse from Subaru on the STI header design, plus is cost less. EL header is more power, mostly midrange I hear. However both probably are more power than stock (see dynoes).

[@dallasnisbet2362]

Do you need to add a tune after installing unequal length

[@jdmuscleusa]

Recommended

[@dionysushunter5078]

Do you have to take down the down pipe while doing the install ? I’m hoping it’s a 9 bolt and some type of job lol

[@jdmuscleusa]

Nothing to take off except for some undercarriage plastics and braces.

[@Christosan88]

nice

[@Smktout32]

Why would you run this with a twin scroll turbo just for sound?

[@waybach]

Dimes dude

[@itsDarrell]

Lets see how long the car lasts with those.

[@ErnestoPerez-ry3vz]

Would I get a check engine light if I buy the un equal headers for my 22 wrx?

[@jdmuscleusa]

Based off our testing no. But it is always recommended to get a tune :)

[@tellyawhatmate]

What gear are you running those cars in on the dyno? Seem to run through the revs a bit too quick

[@justinlavigne2573]

Sounds like 3rd, most places do 4th on a 6 speed.

[@tellyawhatmate]

@@justinlavigne2573 4th is the standard gear used. Im sus on this one

[@danielalaniz2078]

What was all done to this wrx

[@cangwane]

Would a twin scroll uel header be possible? if it is, I'm wondering if that would give it the best of both worlds

[@Starworshipper]

No.

[@thomasvoong8677]

any item it the fit with wrx base 2022?

[@Gios_JDM_garage]

What kind of rims are those at the 0:30 second mark in the vid?

[@smothr]

looks like enkei tsv