RENNtech ECU Upgrade | R231 | SL 550 | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278

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Description

RENNtech ECU Upgrade | R231 | SL 550 | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278ECU Upgrade 500HP 625LB FT Gains: +26HP +59LB FT RENNtech tuning products are certified to meet CARB standards in all 50 States. Our intermediate level ECU upgrade for the Mercedes M278 engine still offers huge gains in performance across the entire RPM range, but with a slightly reduced peak HP and torque from our standard tune. This is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline

W463 - G550 4x4² BiTurbo (MY2017+)

3 Series (E90) 335 Xdrive 3

CLASS E (W 211) 55 AMG Kompressor Speedshift [2 Filters Required] (HP: 476Year: 03 > 06)

Bentayga V8 (MY2018+)

Numbers published by MBUSA are an average over a 750 rpm range for HP and a 2

Factory Figures: 791 HP 1055 LB-FT

Stock: 542 HP | 570 LB-FT

RENNtech Magnetic LED Flash Light / Wand is a great tool for working in and out of the car

R1 Performance Package for AMG GLS 63: ECU Upgrade (HHT)

CLASS C SW (S 204) 230 V6 [2 Filters Required] (HP: 204 | Year: 08 > 09)

515 LB-FT @ 4750 RPM

Weight optimization and developed specifically for the Mercedes-Benz C205 - C43 AMG Coupe