RENNtech | Stainless Steel Muffler | 216-CL 63/65 AMG | 221-S 63/65 AMG| M156 -engine bmw-1-series--e88---2007-2013--esr2019227 The R1 performance package is

The R1 performance package is the perfect entry level performance upgrade for the Mercedes-Benz 190 - AMG GT

R231 - SL63 AMG Pre-FaceLift MY2012-2016

The Carbon Fiber Rear Wing for the Mercedes-Benz AMG GT Coupe dramatically improves rear end stability with an aggressive yet highly functional design

W222 - S 560 Sedan

CLASS M (W 166) 63 AMG / Performance [2 Filters Required] (HP: 525 | Year: 11 > )

RENNtech | Stainless Steel Muffler | 216-CL 63/65 AMG | 221-S 63/65 AMG| M156 -engine bmw-1-series--e88---2007-2013--esr2019227 The R1 performance package isRENNtech Stainless Steel Sport Muffler for 216 CL 63 AMG & 221 S 63 AMG for M156 Series. Gains: up to 10HP & 15 TQ 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