Originally Posted by jsublime
I've seen this posted before. Why is this going to be "the best"? Is this just based on HPF's reputation, or has someone actually seen / heard / have dyno results?
it's gonna be the most powerful exhaust, for one. hpf's reputation and what they do for the e46 m3 for two. and three, it's the only exhaust that will accomadate a single turbo conversion.....thinking ahead