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Old 01-04-2013, 02:08 PM   #1
jewbaru42
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Member#: 265098
Join Date: Nov 2010
Chapter/Region: MAIC
Location: virginia beach virginia
Vehicle:
2003 wrx
silver w/ blk enkei rims

Default equal vs. unequal length headers

Ok I've asked and looked around and can't really get any CLEAR answers of the major difference between an equal length header vs. unequal length. the most I can procure is "equal length is crap!" No real definitive info to back that up. I'm looking into upgrading the entire exhaust system with perring exhaust. I'm pretty much doing everything I can perrin with my soon to be 2013 wrx premium hatch. Just easier that way but I want to know is there a performance difference or just a sound difference and if so what they are
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Old 01-04-2013, 02:28 PM   #2
acumenhokie
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Location: Talleyville, DE
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2010 LGT....2009 FXT

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There is both a performance and sound difference. ELH will give higher performance but will lose the boxer rumble Subaru enthusiasts love.

http://rusubaru.com/equal-length-vs-...ength-headers/
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Old 01-04-2013, 02:44 PM   #3
gaedikus
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04 Forester XT
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Quote:
Originally Posted by acumenhokie View Post
There is both a performance and sound difference. ELH will give higher performance but will lose the boxer rumble Subaru enthusiasts love.

http://rusubaru.com/equal-length-vs-...ength-headers/
was just about to post this link. well done. good show.

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Old 01-04-2013, 07:09 PM   #4
AcquaCow
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Location: Reston VA
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2000 RS, 2001 RSTi,
and a 2011 WRX hatch...

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I have equal lengths on both of my subies and love it... I probably won't go back to boxer rumble any day soon...
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Old 01-04-2013, 07:37 PM   #5
Matt_H
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Location: Bristow, VA
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2008 STI <3 TXS and
2011 F150 Andrewtech

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I have equal length going on my new build, no more rumble and I ain't even mad.
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Old 01-04-2013, 09:29 PM   #6
acumenhokie
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My car came with ELH so I've never had that boxer rumble. It will end up saving me some $ as I can keep the OEM headers when I upgrade my turbo in the spring.
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Old 01-05-2013, 02:43 PM   #7
DoogieSTi
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Location: Ashburn/Springfield
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Went to EL a while back. Sometimes I miss the rumble but not enough to switch back. Sound is still throaty just not as deep or low of a tone. Function over form, always.
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Old 01-05-2013, 04:07 PM   #8
Spoolinva
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09 R6

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I love the rumble!!! So thats why I plan on going with a bigger UEL Header & a catless DP LOL. Sorry neighbors
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Old 01-05-2013, 04:08 PM   #9
karmaSRT
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I had el headers on my bugeye it was deep and mean but to raspy for my taste I think I'm just gonna port and polish my stock ones this time around
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Old 01-06-2013, 08:56 PM   #10
jewbaru42
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silver w/ blk enkei rims

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Headers or no headers, the set up I'm getting will give me at least 305-310 whp. And I'm very happy with that. I'd eventually like to get to around 350 or so but for now that's an awesome start with just simple bolt ons. I think I can deal with a slight lack in performance from UEL to keep the deep rumble of the boxer motor I fell in love with. Thanks guys for the different views
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Old 01-07-2013, 10:15 AM   #11
Homemade WRX
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search FIRST, then PM!!!

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oh and unequal length helps to avoid so many noise related issues with the 'fuzz'
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Old 01-07-2013, 10:57 AM   #12
gaedikus
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Quote:
Originally Posted by Homemade WRX View Post
oh and unequal length helps to avoid so many noise related issues with the 'fuzz'
FTP (gently)

it always bothered me that people in their old muscle cars can go all cammed out, rip out the cats and go straightpipe and the police could have a subaru pulled over, shouting at the top of his lungs while the muscle car drives by behind him "DO YOU KNOW WHY I PULLED YOU OVER TODAY?! YOUR CAR IS PRETTY LOUD!!"
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Old 01-07-2013, 12:34 PM   #13
jewbaru42
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Location: virginia beach virginia
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2003 wrx
silver w/ blk enkei rims

Default

Quote:
Originally Posted by gaedikus View Post
FTP (gently)

it always bothered me that people in their old muscle cars can go all cammed out, rip out the cats and go straightpipe and the police could have a subaru pulled over, shouting at the top of his lungs while the muscle car drives by behind him "DO YOU KNOW WHY I PULLED YOU OVER TODAY?! YOUR CAR IS PRETTY LOUD!!"
And technically the law is flawed because even if you were to get an spt exhaust installed from factory it's "aftermarket" because it isn't the same one from factory. EVEN if you had Aj's Mufflers change out a rusted out pipe it's "aftermarket" so the only way to avoid a ticket with exhaust is to keep the factory one......... but screw that noise haha
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Old 01-07-2013, 01:58 PM   #14
ImNOrobo
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Oh, It's a JDM STI?
Pretty close.

Default

Here is what mine sounds like full throttle with the JDM equal length. I love it, it sounds nasty once opened up but has some rumble below 3k. I know you have heard my car in person as well, whenever we went to the meets. Perhaps this will help.

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Old 01-08-2013, 02:05 PM   #15
jewbaru42
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Location: virginia beach virginia
Vehicle:
2003 wrx
silver w/ blk enkei rims

Default

Quote:
Originally Posted by ImNOrobo View Post
Here is what mine sounds like full throttle with the JDM equal length. I love it, it sounds nasty once opened up but has some rumble below 3k. I know you have heard my car in person as well, whenever we went to the meets. Perhaps this will help.

http://www.youtube.com/watch?v=fxm34VoW_ss
Indeed it sounds good but I'm truly not a fan of the raspy sound. Just doesn't hit the ears right with me but I can still appreciate it. I like the distinct rumble too much to part with it. Now it was going to hinder me more than 20hp then I'd part with it but thats not the case. And like I state ^, my set up I'm getting for my 2013 regardless is promised to produce around 310-320 hp. so really the headers would be just to deepen the tumble and complete the exhaust. I appreciate the advice
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