ABT rear muffler systems are made of high-quality stainless steel. Assembly takes place at the original mounting points. The sound of the car becomes sportier and a little louder but according to statutory provisions. On the chromed end-pipes (with a diameter of 76mm each), the ABT logo is embossed. The rear muffler will be delivered with the appropriate exhaust shafts (primed). ABT rear muffler not for W12 & S8