R3 Performance Package for 209 - CLK 63 AMG Black Series. Includes ECU Upgrade and Carbon Fibre Air Box. Up to 591HP and 555TQ.
RENNtech performance package 3 is the ultimate upgrade for your 63 AMG!
Our package 3 includes everything found in our performance package 2 plus our 100% locking limited slip differential to improve handling and traction in addition to our transmission performance upgrade.
This fierce combination will unleash the true potential of your 63 AMG and ensure you put all your new found power to the ground!