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Note: We have found the new M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz
Rated by Mercedes-Benz: 503 HP @ 6
RENNtech Performance Brake Package I
Crank Performance Numbers are calculated with a 12% Drivetrain loss on the AMG GT
The R2 performance package increases performance to 716 hp and 826 lb-ft without sacrificing daily driver comfort or reliability and offer huge gains across the entire RPM range
RENNtech ECU Upgrade | Bentley Continental Flying Spur Speed | 640HP/575LB-FT mercedes-benz-gl-class--166---2013-2016--gl-63-amg-biturbo-4matic-esr3783563 Note: We have found theRENNtech ECU Upgrade for Bentley Continental Flying Spur Speed. Up to 640HP 575LB FT Gains: +40HP & +22LB FT Our proprietary Bentley ECU upgrade offers rock solid performance from RENNtech, the foremost tuning authority on Bosch and Siemens engine control units. These same units are utilized in Mercedes Benz vehicles, which RENNtech has been tuning since electronic engine management started to show up in vehicles during the mid 1980's, though our
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