will I get any gains going from stock to like a slp y-pipe.I wish i had my headers back but it sucks living here in cali.This is threw stock manifolds and cats

 

i wouldnt bother

 

Save your money, it'll basically do nothing.

 

A friend and I installed the SLP y-pipe when I was trapping 105s. No ET/mph improvements resulted over stock pipe. The exhaust note just got a little deeper. Maybe at some higher power level, the pipe might make a difference. But I think the stock manifolds or cats are more of a restriction than the stock pipe. My 2 cents.

 

I noticed a deeper exhaust note but no performance gain at all. well at least no performance gain that could be felt.