RENNtech Stainless Steel Muffler for 231 - SL 550 porsche-cayenne--9pa----1-gen--gts-esr3998301 our higher efficiency dual intercooler

our higher efficiency dual intercooler pump kit

+66 HP / +102 LB_FT

CLASS E SW (S 210) 300 TD (HP: 177 | Year: 97 > 99)

Bentley  Continental GT (MY2018+)

unlike any other coating process

RENNtech Stainless Steel Muffler for 231 - SL 550 porsche-cayenne--9pa----1-gen--gts-esr3998301 our higher efficiency dual intercoolerRENNtech Stainless Steel Sport Muffler for 231 SL 550. Gaines: +15HP & 20TQ 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 back