RENNtech Stainless Steel Muffler for 231 - SL 550 porsche-cayenne--9pa----1-gen--gts-esr3998301 +66 HP / +102 LB_FT

+66 HP / +102 LB_FT

our higher efficiency dual intercooler pump kit

CLASS GLK (X 204) 350 4-matic [2 Filters Required] (HP: 272 | Year: 08 >)

CLS (C 218) 500 V8 Blue Efficiency [2 Filters Required] (HP: 406 | Year: 10 > )

RENNtech Stainless Steel Muffler for 231 - SL 550 porsche-cayenne--9pa----1-gen--gts-esr3998301 +66 HP / +102 LB_FTRENNtech 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