Focus Fanatics - View Single Post - Basic Bolt ons: Exhaust Headers/Flex Pipes
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Old 01-29-2012, 11:22 AM   #97
felixthecat
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Join Date: Nov 2010
Fan#: 80663
Location: Renton, WA
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Fwerk's header= #1

Quote:
Originally Posted by DoomsdayFAN View Post
I've been thinking a lot about buying the 4-1 Header and putting it on right after smog season. Hopefully that, in addition with a CAI & Stealth Exhaust, will increase my get up and go over stock quite substantially.
Go for the Fwerk's header/flex/stealth muffler & then add a tune to turn off the rear o2 senser. How do they check emmission's down there? Plug in to the OBD2 connecter & check for code's or what?
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