Attractive soltution and reasonably priced but has the 3" exit which won't mate up with my Prodrive and I really like the mello sound and low key look of the Prodrive that I have. Also, it's my understanding that the twin dumb design is better than the bellmouth and only short of having the wastegate dump exernally. This is what Vishnu claims and seems to have some pretty solid R&D, data and performance numbers to back it up with. I dunno, just looking for comments.