RENNtech | Stainless Steel Muffler | R231 | SL 63/65 AMG maserati-granturismo--2007-2019--esr2028087 Up to 818 HP and

Up to 818  HP and 820 TQ @ Crank

18/8 Stainless Steel Strong stainless steel construction

The housings encase our bespoke filters which help to shape the airflow and maintain laminar conditions

Gains: +50HP & +95LB-FT

Size and Offset optimized for C197 - SLS AMG

RENNtech | Stainless Steel Muffler | R231 | SL 63/65 AMG maserati-granturismo--2007-2019--esr2028087 Up to 818 HP andRENNtech Stainless Steeel Sport Muffler for 231 SL 63 65 AMG. Gains: Up to 10HP & 15TQ RENNtech stainless steel (SS) sport mufflers are hand made and rigorously tested to remove any unwanted resonances in the cabin to deliver a deep sound that keeps with the character of a luxury performance vehicle. Our mufflers offer incredible sound in a lighter than the stock weight exhaust with improved performance. This is accomplished by reducing exhaust system