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The RENNtech Sport Muffler System for the C217 - S 550 AMG Coupe comes with an integrated valve system and utilizes the vacuum OEM actuators
RENNtech tuning software for BMW offers significant gains in performance and throttle response without sacrificing your daily driver BMW's reliability
representing the embodiment of performance and luxury
Note: The C63 Black Series exhaust requires modification to the exhaust system to fit as the rear diffuser on the C63 Black Series is different than the non Black Series
Key Features:
RENNtech Porsche Cayenne Turbo S (2007-10) ECU Upgrade (575 HP / 612 LB-FT) ferrari-f430--2004-2009--esr1983839 The RENNtech Sport Muffler SystemRENNtech Porsche Cayenne Turbo S (2007 10) ECU Upgrade. Up to 575HP and 312LB FT. Gains: +25HP & +59LB FT The RENNtech Power Module (RPM) ECU tune delivers significant horsepower and torque gains across the entire power band. By modifying boost mapping and keeping optimized air to fuel ratios, the entire power and torque curve is shifted upward delivering +25 HP +59 LB FT in the Porsche Cayenne TurboS 4. 8 liter V8 Turbo engine, based on Dyno measured