Quote:
Originally Posted by christian370z
I agree. The two biggest restrictions in the OEM exhaust in my opinion are #1 the cats and #2 the Y pipe. I wish I could say how much I picked up in terms of power with just my HFC/Y pipe setup but my butt dyno says it made a big impact in power and acceleration.
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Probably about 12-15 with the HFC's and another 3-5 from the Y-pipe.