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throttle. body

W

whit

New member
I have an 04 gt2 want to let it breath a lil bit easier. Going to have the throttle body ported and polished. In doing this, i am also putting on a zz performance down pipe and all new exhaust all the way back. My question is. When doing this will this cause mac sensor problems? Or will i have to do some pcm running?
 


I have an 04 gt2 want to let it breath a lil bit easier. Going to have the throttle body ported and polished. In doing this, i am also putting on a zz performance down pipe and all new exhaust all the way back. My question is. When doing this will this cause maf sensor problems? Or will i have to do some pcm running?
 
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