R3 | Performance Package | W205 - C63 /S AMG | 767 HP / 633 LB-FT | 4.0L V8 BiTurbo | M177 exhaust-valve-module designed in-house by RENNtech and

designed in-house by RENNtech and manufactured in the USA

lightweight components compensates for turbo lag despite being a functionally larger turbo

CLASS E SW (S 211) 500 V8 4-matic [2 Filters Required] (HP: 388 | Year: 06 > 09)

The full set comes with 2 BOV adapters

CLASS M (W 163) ML 430 (V8) (HP: 272 | Year: 96 > 01)

R3 | Performance Package | W205 - C63 /S AMG | 767 HP / 633 LB-FT | 4.0L V8 BiTurbo | M177 exhaust-valve-module designed in-house by RENNtech andR3 Pkg includes: ECU Upgrade, Sport Muffler, BOV Adapter, High Flow Air Filter, Fuel System Upgrade, Stage II Turbocharger Upgrade. Gains: Up to +222 HP +83LB FT RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible