RENNtech Stainless Steel Sport Mufflers for 212 - E 63 AMG BiTurbo porsche-911--997-2---2009-2013--carrera-s-esr9467560 5L V8 Supercharged) Modified Performance:

5L V8 Supercharged) Modified Performance:

RENNtech Porsche 997 GT2 ECU Upgrade

RENNtech Adjustable Carbon Fiber Deck Lid Spoiler for 204 - C Class Sedan

while cruising the exhaust valves will never fully open

CLASS C (W 204) 63 AMG Performance [2 Filters Required] (HP: 457 | Year: 07 > 09)

RENNtech Stainless Steel Sport Mufflers for 212 - E 63 AMG BiTurbo porsche-911--997-2---2009-2013--carrera-s-esr9467560 5L V8 Supercharged) Modified Performance:RENNtech Stainless Steel Sport Mufflers for the 212 E 63 AMG. Gains: up to 10 HP & 15 TQ. RENNtech T 304 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 with larger 2 3 4" diameter tubing offer lighter weight than the stock exhaust and improve performance by reducing exhaust back