This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.
Purchasing this product requires you to sign our Vehicle Compliance Waiver here.
Kleemann ECU Upgrade for Mercedes CLK500/550 V8 C209 M273 06-09
Performance optimization of 500/550 V8 models with a Kleemann ECU upgrade refines the power delivery characteristics and increases the power up to 405 HP and 575 Nm.
IMPORTANT NOTICE: You need to fill out the ECU checklist (download it here) and send along with the ECU, so we can program the best possible software for your specific car.
NOTE: In order for us to upgrade the ECU, you must remove it from the car and send it to us.
WARNING: Cancer and Reproductive Harm
Prior Design PD Black Edition Trunk Spoiler Mercedes-Benz CLK-Class W209 03-09
Prior Design PD Black Edition Widebody Aerodynamic Kit Mercedes-Benz CLK-Class W209 03-09