Registered: 10/22/08
Posts: 2083
Loc: Cranston, RI
I hope you can make it work bud. I can't see a pipe larger than 3" in diameter ever fitting between the booster and valve cover. Vibrant makes some great reducers and vband flanges. I used them when experimenting with the S372. All in all good luck and have fun.
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04 GTO M6 | HE SS Clutch | Kooks LT's | SLP LM2 | K&N Soon: APS TT kit