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 400rpm range for TQ

400rpm range for TQ

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

RENNtech | X290 | AMG GT63 | Side Skirts | Carbon Fiber | Gloss Finish

540 wtq @ 4

accurate pointer movements

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 400rpm range for TQRENNtech 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