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hi, I had a 2.7 that I installed a set of header ( B&B)and had lot of problems with cells. I put the same exhaust on a 01 S , 3.2 with a 2.5 cat and extened sensor wires. I also rased fuel pressure .3 bar, the car runs great, +12hp at wheels. PS much better sound and added porsche sport mufler.
Last edited by Boxster..S; 01-26-2011 at 09:18 PM.
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