RENNtech Stainless Steel Sport Mufflers for Bentley Continental SS / GT / GTC Speed mercedes-benz-s-class--223---2021-present--s-580-esr2317499 SL 63 AMG (R231 |

SL 63 AMG (R231 | FL MY2015+ | RWD | M157 | 5

The result is nothing short of spectacular with gains up to 104 HP and 105 lb-ft

5 Series TOURING (E61) 525 i (HP: 184 | Year: 03 > 05)

allowing for a denser air/fuel mixture and substantially cooler charge air temperatures over the entire operating range

CLASS R LONG (W 251) 500 4-matic [2 Filters Required] (HP: 388 | Year: 07 > )

RENNtech Stainless Steel Sport Mufflers for Bentley Continental SS / GT / GTC Speed mercedes-benz-s-class--223---2021-present--s-580-esr2317499 SL 63 AMG (R231 |RENNtech Stainless Steel Sport Mufflers for Bentley Continental SS GT GTC Speed 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 lighter weight than the stock exhaust and improve performance by reducing exhaust back pressure and improving exhaust gas flow. Gains: +10 HP