R1 Performance Package | W463 | G 500 | 325 HP / 365 LB-FT | 5.0L NA V8 | M113 mercedes-benz-slk-class--171---2004-2010--slk-350-esr6719359 RENNtech ECU HHT (HandHeldTuner) for

RENNtech ECU HHT (HandHeldTuner) for the 209 - CLK 63 AMG Black Series

Akrapovic titanium exhausts are not just about appearances

and an enhanced sporty sound

420 HP @ 5700 RPM / 435 TQ @ 4300 RPM

turbulence is further reduced

R1 Performance Package | W463 | G 500 | 325 HP / 365 LB-FT | 5.0L NA V8 | M113 mercedes-benz-slk-class--171---2004-2010--slk-350-esr6719359 RENNtech ECU HHT (HandHeldTuner) forR1 Performance Package for 463 G 500. Includes ECU Upgrade and Carbon Fiber Air Box. Up to 325HP and 365 LB FT. The R1 performance package for the Mercedes 500 series engine includes our proprietary ECU upgrade in addition to our full carbon fiber airbox upgrade which offers a larger volume of incoming air for better engine breathing and improved cylinder filling. This combination that provides noticeable increases horsepower, torque and throttle