The RennTech R2 Performance Package is the perfect entry level performance upgrade for the CLK 63 AMG Black Series. RennTech performance package 2 includes our proprietary ECU tune in addition to our full carbon fiber airbox, 82mm throttle body kit and RennTech stainless steel headers for a gain of +53 HP and +68 over stock.
The R2 performance package increases performance to 571HP and 533TQ at the crank, without sacrificing daily driver comfort or reliability and offer huge gains across the entire RPM range. Due to increased power and boost levels, 93 Octane or higher gasoline has to be used with R2 upgraded RennTech vehicles to avoid damage to the engine. States known for poor fuel quality have to be supplied with a lower power setup.