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I'm running.
3'' Turbo elbow
3'' Turbo downpipe
3'' Test pipe
3'' catback exhaust.
on my SR20DET.
I live in california. Honestly my whip is stupid fucking loud.
I DD everyday. I've never once had problems with a cop yet. I have been pulled over numerous times, but never hassled for my exhaust. I live in the bay area, so I'm not sure how the police are in CARSON. Just don't do stupid shit on public streets.
and to awnser your question...It all depends on your setup? ka24e? ka24de? sr20det? rb?....etc.
2.5 is good with N/A, where as you would still have backpressure.
2.5+ on turbo cars are a + which doesn't restrick air flow.
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allntrlundrgrnd: "you never really appreciate your parents fridge until you look into your own and its full of condiments only"
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