Quote:
Originally Posted by ryoma
tbh, you probably won't see much gains from it. probably around 5 WHP at the most, if at all. the most gains you will get is with an aftermarket header, especially with a tune.
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Quote:
Originally Posted by zc06_kisstherain
there is nothing to do with catalytic converter with any exhaust. you're not changing front pipe.
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I know, I am asking if I change every pipe except for the front pipe will it unbalance air flow?