R1 Performance Package | C219 | CLS 500 | 325 HP / 365 LB-FT | 5.0L NA V8 | M113 mercedes-benz-sl-class--230---2003-2006--sl-600-esr2548062 This is a slight reduction

This is a slight reduction from our standard tune but still offers white knuckle performance at one of the most affordable price points in the tuning market

RENNtech Fuel Sytem Upgrade

Sports mode - the exhaust gas valves open earlier

0" Weight:   Construction: 1-piece Forged Tire Size: 275/35-19

Our proprietary 82mm Performance Throttle body package offers a 22% increase of incoming air volume

R1 Performance Package | C219 | CLS 500 | 325 HP / 365 LB-FT | 5.0L NA V8 | M113 mercedes-benz-sl-class--230---2003-2006--sl-600-esr2548062 This is a slight reductionR1 Performance Package for 219 CLS 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