horsepower gain from cat-back exhaust and headers?
#1
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horsepower gain from cat-back exhaust and headers?
so i am getting a Greddy EVO2 cat-back exhaust and spyder 4-2-1 ceramic headers installed on my car tomorrow. I know the only way to figure out the exact horsepower is to get a dyno test done, but how else can i get an estimate on how much horsepower gain i will have?
Thanks
Thanks
#4
I'm not saying you won't gain anything, I'm saying you won't gain much.
Search around here... there are a ton of threads discussing exhausts, headers, and backpressure and such.
#5
No. ALL of the power is generated by the air flow. The only way to increase power is to increase the flow of air & exhaust. Headers (or intake) can only improve things only to the extent that some other component becomes the dominating resistance.
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07-24-2013 01:18 AM