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Rated by Mercedes-Benz: 503 HP @ 5
Weight optimization and developed specifically for the Mercedes-Benz 117 - CLA45 AMG
but won’t crack
CLK COUPE' (C 209) 63 AMG Black Series [2 Filters Required] (HP: 507 | Year: 07 > 09)
RENNtech M277 Biturbo ECU Upgrades are TÜV approved
RENNtech Stage I Turbo Upgrade | M256 | 3.0L I6 Turbo EQ Boost | 505HP/460LB-FT | MY2018+ mercedes-benz-e-class-coupe--207---2010-2013--e-550-biturbo-esr7403570 Rated by Mercedes-Benz: 503 HPIncludes Turbo Upgrade, and ECU Upgrade. Gains: Up to +69HP +50LB FT RENNtech Stage I Turbo upgrade for the AMG 53 M256 AMG 3. 0L Inline 6 engine. RENNtech has been at the forefront of ECU tuning for over 30 years. Through our experience, countless hours of in house Research & Development, and extensive testing we ensure that all RENNtech Performance upgrades offer incredible performance gains as well as rock solid reliability. The RENNtech Stage I