Quote:
Originally Posted by Jordo!
Expect about 15-20 whp for Y pipe plus HFC, with most of the gains coming from the HFC. A bit more with test pipes.
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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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-320whp / 259wftlbs-
SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob
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