Quote:
Originally Posted by RiskyTrousers
No forced induction, its for an STX car where every little bit helps.
I'm not a fan of most 2.5" systems since most use the factory donut gasket for the cat-back which still pinches down to 2.25". The only true 2.5" exhaust that I'm aware of is the Perrin that uses a chamber style muffler, which I'm also not a fan of.
I'm not sure I want any back pressure, maybe you're talking about harmonics for the scavenging effect?
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you want back pressure for an na car.