RENNtech R1 Pkg | W222 | S 63 AMG | Sedan | 696 HP / 801 LB-FT | M157 | 5.5L V8 BiTurbo audi-rs4--8k---2012-2015--4-2l-v8-fsi-esr2470407 ECU Upgrade | Up to

ECU Upgrade | Up to 638HP / 695LB-FT | Gains: +33HP & +49LB-FT

The end result is nothing short of spectacular with the RENNtech R3 package gaining up to 222 hp and 83 lb-ft

RENNtech ECU Upgrade for 164 - ML 350

SL 600 (R230) Stock Performance:

RENNtech R1 Pkg | W222 | S 63 AMG | Sedan | 696 HP / 801 LB-FT | M157 | 5.5L V8 BiTurbo audi-rs4--8k---2012-2015--4-2l-v8-fsi-esr2470407 ECU Upgrade | Up toR1 includes: ECU Upgrade, Diverter Valve and Air Filters Gains: +91HP; +132LB FT The RENNtech R1 Performance Package is the perfect entry level performance upgrade for the E 63 AMG. With the combination of the RENNtech ECU Upgrade and the latest, 3rd generation Diverter Valve RENNtech is able to add up to 91 HP and 132 LB FT to the 5. 5L V8 BiTurbo engine (compared to RENNtech rated stock performance). The addition of the upgraded diverter valve helps