Originally Posted by TheGreatOne

You'll see the most performance out of the Fast Intentions.

You'll want to read the thread as there are different variations.

12" or 18" resonators (which affect in cabin noise as well as noise in general)

Stainless Steel vs Carbon FIber Mufflers. The CF mufflers look sick, more stealth and allow a little more sound out, so a nice balance if u were to go 18" resonators (which are quieter but go with CF mufflers)

Anyways, its some good reading...go through the pages, get a feel for why people love it etc.