RENNtech | Stainless Steel Muffler | R231 | SL 63/65 AMG porsche-cayenne--9ya---2018-present--cayenne-gts-coupe--my2020---esr2231938 599 whp @ 5

599 whp @ 5

drivers can use the Sound Remote Controller or the new smartphone app (for iOS and Android) to regulate the valves

536 HP @ 5500 RPM

RENNtech HSM | Hand-Held Suspension Module Specifications:

CLASS R (W 251) 350 V6 Blue Efficiency (HP: 306 | Year: 12 > )

RENNtech | Stainless Steel Muffler | R231 | SL 63/65 AMG porsche-cayenne--9ya---2018-present--cayenne-gts-coupe--my2020---esr2231938 599 whp @ 5RENNtech 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