R1 Performance Package | C209 | CLK 500 | 325 HP / 365 LB-FT | 5.0L NA V8 | M113 mercedes-benz-sl-class--231---2012-2016--sl-65-amg-biturbo-esr8588212 495 LB-FT @ 5200 RPM

495 LB-FT @ 5200 RPM

If your vehicle is equipped with factory exhaust valves

These systems

X253 - GLC SUV GLC63 AMG SUV | MY2020+

Stainless Steel Performance Mufflers

R1 Performance Package | C209 | CLK 500 | 325 HP / 365 LB-FT | 5.0L NA V8 | M113 mercedes-benz-sl-class--231---2012-2016--sl-65-amg-biturbo-esr8588212 495 LB-FT @ 5200 RPMR1 Performance Package for 209 CLK 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