AWE 19-23 BMW 330i / 21-23 BMW 430i Base G2X Track Edition Axle Back Exhaust - Diamond BlackBeginning after the secondary catalyst, the AWE Track Edition picks up right before the rear axle and provides a full single 3 route from this point, then splits to dual 3 tip outlets. The Track Edition has absolutely zero filter making its sole purpose to increase the volume out of the B48 engine while remaining completely 50 state emissions compliant (and saving weight and dollars along the way). A simple cut (at the factory cut point) is all it