Plus shipping, applicable import duty and installation.
RENNtech M276 Biturbo ECU Upgrades are TÜV approved!
Our proprietary ECU upgrade for the Mercedes M276 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 384 lb/ft torque, up to an astonishing 402 HP and 454 lb/ft at the crank!
GLS 450 BiTurbo (X166 – M276 Biturbo 4-MATIC Engine) Stock Performance:
GLS 450 BiTurbo (X166 – M276 Biturbo 4-MATIC Engine) Modified 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.