AWE 19-23 BMW 330i / 21-23 BMW 430i Base G2X Track Edition Axle Back Exhaust - Chrome SilverBeginning after the secondary catalyst, the Track Edition picks up right before the rear axle and provides a full single 3 route from this point and 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. A simple cut at the factory cut point is all it takes, and the Track Edition goes into place via four