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RENNtech M133 ECU Upgrades are TÜV approved!
Our proprietary ECU upgrade for the Mercedes M133 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 355 HP and 332 lb/ft torque, up to an astonishing 428 HP and 417 lb/ft at the crank!
CLA 45 AMG (C217 – M133 2.0L Engine) Stock Performance:
CLA 45 AMG (C217 – M133 2.0L 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.