RENNtech HHT ECU Upgrade | CL 600 | C215 | 417HP/453LB-FT | 5.8L V12 | M137 | MY2000-2002 mercedes-benz-cls-class--219---2006-2011--cls-55-amg-kompressor-esr8681054 RENNtech modifies the OEM Aluminum

RENNtech modifies the OEM Aluminum Lower Control Arms to allow for camber adjustment on lowered cars and cars with performance setup

The center section of the diffuser also accepts the EU third brake light or may also be removed and a mesh grill insert installed for an even more customized look

Not just a pretty to look at

Give your AMG GT R an aggressive makeover with these RENNtech front canards as part of our Clubsport Package

We have found the M177 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz

RENNtech HHT ECU Upgrade | CL 600 | C215 | 417HP/453LB-FT | 5.8L V12 | M137 | MY2000-2002 mercedes-benz-cls-class--219---2006-2011--cls-55-amg-kompressor-esr8681054 RENNtech modifies the OEM AluminumRENNtech HHT ECU Upgrade for the 215 CL 600. Up to 417HP and 446TQ. Gains: +55HP & +56TQ RENNtech M137 V12 ECU Upgrades are TV approved! Our proprietary ECU upgrade for the Mercedes M137 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability. Our ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 362 HP and 390 lb