Headers or Test pipes or both with stock exhaust?

Originally Posted by luigi90210 while im not doubting the stock muffler blowing test pipes make your exhaust run cooler since there is no cat, cats heat up the exhaust since

		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Intake/Exhaust
Headers or Test pipes or both with stock exhaust?

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12-15-2013, 04:14 PM

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andre12031948

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Quote:

Originally Posted by luigi90210

while im not doubting the stock muffler blowing

test pipes make your exhaust run cooler since there is no cat, cats heat up the exhaust since they need to run at 600F+ in order to work

i think it cant handle the extra flow if anything

Replacing my cats with test pipes & a tune gave me more H.P. than anything I could think off. Since I did it for power not sound, I'll just leave that subject to you guys/the experts....

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