My new mods
Thread Starter
Intermediate
Joined: Oct 2009
Posts: 329
Likes: 205
I was under the impression that a tune for aftermarket headers was optional. When I put EL on my STI I didn't tune it until I went bigger turbo and the AFR was fine and no CEL.
You'll gain an extra 10% HP and TQ if you you get a tune with the headers from looking at the RR website.
Will the car throw a CEL if you have aftermarket headers without a tune?
You'll gain an extra 10% HP and TQ if you you get a tune with the headers from looking at the RR website.
Will the car throw a CEL if you have aftermarket headers without a tune?
I know owners of GS-Fs that installed headers and did not get CELs and others that did. I just don’t want to do it and get a CEL. I believe it all depends on how the O2 censors are installed and where they are located, but I might be wrong.
I will try to do some homework on this and then decide what option to go with.
PPE equal length is the best. 
Can't wait!
-Josh
Can't wait!
-Josh
__________________
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Your One Stop Aftermarket Shop!
PPE / Apexi / GTHAUS / Borla / Swift / RSR / Tom's Racing / Lexon / LEMS / Rowen + More!
Orange County, CA
Email: info@merakiautoworks.com
Text/Call: 213 394 2886
Website: www.MerakiAutoworks.com
Rookie
Joined: Sep 2019
Posts: 33
Likes: 23
From: Texas
Love the mods, I literally just installed the R&R heat shield on my GSF an hour ago and the next thing I want to do is get the Joe Z exhaust. I fully agree with you that it sounds Awesome. And who can say anything bad about the TOMS carbon fiber kit, LOVE IT !!! Keep up the great work.
Last edited by 18ASGSF; Nov 21, 2019 at 06:03 PM. Reason: typo
