Autotech continues to push the performance exhaust system envelope. Extensive research and development time was spent in conjunction with industry icon Magnaflow to improve on the factory offering, as Volkswagen has done a great job engineering the stock 2.5L exhaust for ample flow. We're proud to have met that challenge and now offer our Autotech SportTuned Stainless Steel Cat-Back Exhaust Systems for the Mk5 Mk6 Rabbit Golf 2.5L models. The 2.25" diameter system features 3" polished tips, 100% stainless steel tubing is larger than stock and mandrel-bent for maximum flow.