|
I'm really not of much help with the n52 engine in the 3.0si, but if u're looking at a complete aftermarket exhaust setup, i know a catless section 1 will produce the most gains, since the heirarchy of performance gains from modifying ur exhaust starts up at the headers. u could get redesigned headers for better flow, race cats in section 1, a modified x-pipe and ur choice of mufflers (capristo has a set for the 3.0si tt sounds amazing). i really don't know if all this is going to be able to yield 25-30bhp, again, i'm not familiar with the n52.
i believe txz4 got himself a new drop-in filter for his 3.0si coupe and also put on a stebro muffler. u could pm him for additional info.
|