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Including Stainless Steel Sport Mufflers w/Electronic Valve System and Carbon Fiber Rear Decklid Spoiler
5 Series TOURING (F11) 535 i/Xdrive (HP: 306 | Year: 10 >)
200 cell sport catalytics ensure lasting quality and a rich
the Lightweight Subframe delivers improved performance on roadways and on track
518 LB-FT @ 2650-4800 RPM
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
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