The Track Edition shares the same integrated H-pipe and precision engineering as its Touring Edition counterpart, minus AWE’s patented drone-canceling solution, 180 Technology®. In place of the 180 Technology® resonator in the rear lies a Track Edition straight section. As a result, this version is known to get (really) rowdy in mid-range acceleration and deceleration, and may be too much for many. Due to this reason, AWE Track Edition Exhausts cannot be returned based on sound preference. You've been warned. However, if you feel that it's ever just a bit rowdy.... we made it easy to convert between Track and Touring Editions if you decide at a later date to change your volume. Track Edition Exhausts are available with 4" double-walled slash-cut tips in either Diamond Black or Chrome Silver. For those who like it raw and rowdy, the Track Edition is for you.