Killer B Equal Length Holy Headers on a 2015+ WRX STI

Ever wonder what's it like to daily drive a 2015+ STI with Equal Length (EL) Headers? In today's episode we take a look at my 2016 STI's Equal Length Headers setup, giving my impressions on what it's like to drive / race VS the stock STI Unequal Length (UEL) Headers. Prior to my EL setup, the following setup for my STI Stock UEL headers were as follows:
+++STI Stock UEL Headers Supporting Mods+++
- Stock Turbo
- Injector Dynamics ID1050x Injectors
- DeatschWerks "DW300" Fuel Pump
- Custom Fuel Rails
- Zeitronix Flex Fuel Kit
- INVIDIA Turbo-back Exhaust
- Process West Cold Air Intake
- Pierburg 3 Port Boost Contoller Solenoid
- Koyorad Hyper V Series Aluminium Racing Radiator
- Ryder Racing - Cylinder 4 Cooling Mod Kit
- Custom ECU Tune
+++KILLER B EL Holy Headers Supporting Mods+++
- Everything above
- Killer B Holy Headers w/ Up-Pipe - Swain Coated
- COBB Accessport v3
- Process West Top Mount Intercooler Kit
- GFB Mach 2 TMS Recirculating Diverter Valve T9103 (BPV)
- COBB Tuning Turbo Heat-shield
- Killer B High Flow Sump Package: Sump | Baffle | Pickup
- Process West Engine Oil Cooler Kit
- Custom Cobb AP Tune
Make sure to watch until the end for some sound clips!
⚠️ NOTE: This video is not sponsored.
⏱️TIMESTAMPS⏱️
00:00 Intro
01:17 Basic Exhaust Headers info
02:34 Caveats - Some supporting mods
02:57 Build goals
03:24 EL Headers Heat Management
03:54 My EL Headers
04:18 How EL Headers changed the car
05:37 EL Header Supplier and Insatller
05:56 Sound Clip - Cold Start
06:30 Sound Clip - Drive Bys
07:51 Sound Clip - Revs
08:10 Sound Clip - Roll Racing
08:35 Sound Clip - Track
10:05 Outro
The Killer B Equal Length 4-1 Holy Header was supplied and fitted by @DCJapAutomotive , their details below:
🕸 dcjapautomotive.com/
📸 / dcjapautomotive
Subscribe for more content of the 2016 WRX STI; daily driving, racing and casual car parts reviews:
👉 / @fam571
#wrxsti #sti #subaru #subienation #jdm #subaruwrxsti #subaruwrx #subieflow #killerbmotorsport #exhaust #exhaustsound #exhaustsounds #racing #rollrace #rollracing #circuitracing #trackday #trackdays

[@ronrosalesphotography6058]

Awesome vid bro, informative!

[@JohnnyDiesel88]

Great and informative videos! I just picked up a killer b header for my 18 STi .. Im so stoked!!

[@FAM571]

Thanks mate! Appreciate the feedback and hope you enjoy your new headers!

[@sonicewrxsti]

Cooo video, Sydney based too by looks of it. You prob heard or seen mine around the socials. Came here looking up holy headers.. and was impressed!

[@FAM571]

Thanks mate, yeah Sydney based. Glad you liked the video!

[@sonicewrxsti]

@@FAM571 nice one, how’d you go at luddenham? Time wise and enjoyment ?

[@FAM571]

@sonicewrxsti Really enjoy luddenham, the last time we went I managed a 57.006 time, aiming for a 56 for the next time we go. You?

[@sonicewrxsti]

@@FAM571 first time last September 55.8 was best of efforts. 54s is goal next month. Just need tyres and not an 32 degree day tyres and temps soak suffer. Goodjob for getting into mid 50s!

[@FAM571]

@@sonicewrxsti that's a decent time!

[@jcool9824]

Great vid, thanks for sharing

[@FAM571]

Thanks for watching!

[@ChrisPlaysDG]

I plan on upgrading to Equal Length on my 2007 WRX when i also upgrade to a bigger turbo and intercooler. As ive owned the car over the years, my opinion on EL Headers have changed. I like the aggressive and crisp note the EJ makes with EL headers.

[@guilhermemonteiro5276]

This STi is beautiful! You could show us all the exterior changes that you did and all the upgrades too! Congrats for the car

[@FAM571]

Thank you! Will do an exterior mods video for sure!

[@angelikihi158]

Cool

[@Stewie_STI]

I do have to say, one really big plus about the stock headers is spool time. If someone is thinking about upgrading to another set of uels from stock you will most definitely increase the time it takes for the turbo to spool because of the amount of piping the exhaust has to go through. I just got a set of killer b's though and I gotta say they still rumble just enough for me and I'm loving them more every day and not thinking about going back!

[@FAM571]

I'm the same man, there's enough of a rumble there to compensate, and agree, have not thought about going back.

[@lucian7182]

A sti with a good turbo back set up and ulh is probably the best sounding 4 cylinder in existence. Unfortunately the results speak for themselves when it comes to the issues with ulh. I’m getting a holy header installed next week. While I dont think it sounds better then ulh, I can appreciate the reliability aspect and the hp and tq gains through the rev range.

[@FAM571]

Coming from ulh and a good turbo back setup, I couldn't agree more with you, they sound amazing. But after being on the setup for a while, I decided reliability was more important than sound, and with the elh setup.

[@gengiz]

Hey bro thanks for video, I been trying to find a good workshop to do some performance mods and dyno tune but the one near me ichiban has terrible communication and does not even respond. Do you have any recommendations where I can take my 19 sti

[@FAM571]

Thank you! I recommend DCJAP, that's where I've been taking my car for servicing and car mod installs. For tuning, my car has been tuned by Ichiban, if you haven't already try giving them a call on their landline.

[@voltes5830]

The car is very shiny

[@romasaldana]

Ganda ng sti mo

[@FAM571]

Thank you pare!

[@AngelRivera-ov6np]

Question how you have a levorg wagon bumper on a sedan sti car...is the same fitment?

[@FAM571]

Yes, same fitment; no modifications required to fit the front bumper.

[@AngelRivera-ov6np]

@@FAM571 thank you so much for the info I appreciate it.🔥🔥🔥

[@ramon4104]

What’s ur current setup for downpipe did u go for the catted route or catless ?

[@FAM571]

I went with an Invidia catted down pipe.

[@borowiak777]

Is tune required to swicth from unequal to equal?

[@FAM571]

Yes, definitely recommend getting a tune.

[@shoerotata9345]

Hey mate were did you get your wing extension from .

[@FAM571]

Hey mate, you talking about the Perrin wing stabilisers? Or the STi gurney flap?

[@shoerotata9345]

@@FAM571perrin wing stabilisers

[@FAM571]

@@shoerotata9345 Got them as a gift, but most places sell these like CMA, Prospeed and DCJAP.

[@kameroncowan4867]

Where you get the front bumper from???

[@FAM571]

Unfortunately the shop I got it from is no longer operation. Japanparts (online store) is wherre I originally found them though.

[@monstertoaster]

What bumper is that I’ve never seen it before?

[@FAM571]

It's from the Levorg STI Concept body set - will be doing a video on my exterior mods in future to cover this.

[@vince22222]

Bludy Bin chickens!

[@FAM571]

😂

[@Davesunga10]

Have you driven New VB?

[@FAM571]

No I haven't, not too keen on the looks though.

[@guilhermemonteiro5276]

What is the model of those tail lights?

[@FAM571]

These are Corazon taillights.

[@michaeltaeza3662]

Taillight info?

[@FAM571]

They're the CORAZON LED Tail lights. Planning on making a video on these to go through its features etc.

[@Craiggg12345]

Similar to my set up

[@FAM571]

Any differences? Would be interested to know!

[@Craiggg12345]

@@FAM571I changed the header and turbo same time to killer b and a Cobb 20g. Miss the low end power but the new turbo gives me such nice top end. I love it.

[@ihatestupidppl]

The fact that you buy a 44k+ STI and it comes with shitty oem headers is just sad. I have a 20' STI with over 500+ hp and tq running on E85. I got the Tomei ELamd FP Red with Grimmspeed FMIC.

[@FAM571]

Nice! Tomei not really popular here, but keen to hear how your exhaust setup sounds! How are you finding front mount as opposed to top mount?