Plus shipping, applicable import duty and installation.
RENNtech M157 Biturbo ECU Upgrades are TÜV approved!
Our proprietary ECU upgrade for the Mercedes M157 Biturbo 4-MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.
CLS 63 AMG (W218 – M157 Biturbo 4-MATIC Engine) Stock Performance:
Our online store allows you to choose the best performance parts for your car. Instead of having the items delivered to your home, we can deliver direct to your local service center. You can browse products on this website. Please feel free to place an order and one of our representatives will contact you to arrange delivery and installation if requested of your new performance parts.