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Including Stainless Steel Sport Mufflers w/Electronic Valve System and Carbon Fiber Rear Decklid Spoiler
This fully pre-preg carbon fiber spoiler blends two distinct design elements to improve aero efficiency
200 cell sport catalytics ensure lasting quality and a rich
Note: The RENNtech A1 Aero Package are designed to fit the AMG GT63 (X290 -chassis)
6 / 4 (HP: 300 | Year: 10 > )
RENNtech Porsche 997 Turbo ECU Upgrade (523 HP / 560 LB-FT) mercedes-benz-e-class-sedan--212---2010-2013--e-550-esr8062504 Including Stainless Steel Sport MufflersRENNtech Porsche 997 Turbo ECU Upgrade. Up to 523HP and 560LB FT. Gains: +50HP & 103LB FT Our proprietary Porsche ECU upgrade offers rock solid performance from RENNtech, the foremost tuning authority on Bosch and Siemens engine control units. These same units are utilized in Mercedes Benz vehicles, which RENNtech has been tuning since electronic engine management started to show up in vehicles during the mid 1980's, though our proprietary tuning