RENNtech | Carbon Fiber Airbox | M157 | 63 AMG | 5.5L BiTurbo V8 Series maserati-levante--2017-present--s-v6-430-ps-esr3335661 The RENNtech upgraded M278 now

The RENNtech upgraded M278 now produces up to 540 HP and 705 LB-FT at crank

The ECU Plus Upgrade brings the C292 - GLE 43 AMG Coupe up to 416 HP and 460 LB-FT

219 - CLS 63 AMG

Our intermediate level 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

but also won’t crack

RENNtech | Carbon Fiber Airbox | M157 | 63 AMG | 5.5L BiTurbo V8 Series maserati-levante--2017-present--s-v6-430-ps-esr3335661 The RENNtech upgraded M278 nowUsing the highest quality pre preg carbon fiber, our 4 piece airbox kit for the 63 series biturbo M157 engine comes complete with flow optimized turbo tubes to maximize engine performance by increasing the volume of incoming airflow. The carbon fiber airbox was designed, engineered and manufactured in the USA using only industry leading materials to ensure long lasting durability and appearance. Our carbon air box is able to offer gains up to +10 hp