If you're looking to have it cranked to 11 at all times, this is for you. The AWE SwitchPath™-to-Track Conversion kit replaces the rear muffler and valve section sections with straight-through, unfiltered Track Edition rear sections.
AWE SwitchPath-to-Track Conversion Kit for Mk7.5 Golf R and 8V S3
AWE Tuning Audi 8V S3 SwitchPath-to-Track Conversion Kit
Exhaust