RENNtech ECU Upgrade | W222 | S 550 | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278 | MY2014-2017

Thoughtful delivery service

Easy 30 day returns

Certified Reviews

Description

RENNtech ECU Upgrade | W222 | S 550 | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278 | MY2014-2017ECU Upgrade 500HP 625LB FT Gains: +26HP +59LB FT 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 components or for areas and countries with extreme altitudes, temperatures or

Advanced TechnologyBMC technical staff has developed a particular production system based on soft rubber moulding which produces the familiar BMC red filters

X166 - GL63 AMG

Range Rover Sport SVR (L494/LW) 2014 - 2021

our sound pipe produces noticable gains and improved power in the mid-to-high rpm range

powerful sound as well as an estimated 40-horsepower gain at the crank

Bentley Continental GT Speed (MY2012-18)

Includes ECU Upgrade

Rated by Mercedes-Benz: 429 HP @ 5

Up to 550HP and 604TQ

reduced weight

Up to 517HP and 552LB-FT

992 | GT3 Touring

Exchange/Return Notes