R2 Performance Package | W463 | G 55K | 560 HP / 596 LB-FT | 5.5L Supercharged V8 | M113 bmw-m5--e60-e61---2005-2010--esr9425365 C207 - E 550 Coupé

C207 - E 550 Coupé FaceLift 2014+ – M278 | 4

RENNtech ECU Upgrade for 230 - SL 550

RENNtech Performance Series | Forged Wheels | Set of 2 Front and 2 Rear | Front: 20" x 9

ECU+ Upgrade | Up to 669HP / 734LB-FT | Gains: +65HP & +88LB-FT

Our proprietary Rolls Royce ECU upgrade offers rock solid performance from RENNtech

R2 Performance Package | W463 | G 55K | 560 HP / 596 LB-FT | 5.5L Supercharged V8 | M113 bmw-m5--e60-e61---2005-2010--esr9425365 C207 - E 550 CoupéR2 Performance Package for 463 G 55 AMG Kompressor. Includes ECU Upgrade, Crankshaft Pulley, Carbon Fiber Air Box, 82mm Throttle Body and High Flow Intercooler Pump. Up to 560HP and 596LB FT. Gains: +63HP & +80LB FT Performance package R2 takes performance to the next level and is a step up from our R1 tuning package. The R2 performance package includes the same components found in our R1 package with the addition of a full carbon fiber airbox, 82 mm