RENNtech ECU Upgrade | W212 | E 550 | 480HP / 605 LB-FT | 4.7L V8 BiTurbo | M278 | MY2014-2016 bmw-x5--e70----2010-2013--xdrive35d-3-0-l-i6-twin-turbo-diesel--m57n2--esr5029908 The R1 performance package for

The R1 performance package for the Mercedes 55 series engine includes our proprietary ECU upgrade in addition to our full carbon fiber airbox upgrade which offers a larger volume of incoming air for better engine breathing and improved cylinder filling

544 LB-FT Mercedes M157 engine performance when measured

The desired lowering setting will be loaded onto the vehicle via the ODB2 port in the footwell of the car

This process creates a laminate with a precisely controlled resin volume and in turn is 20-30% stiffer and stronger than an equivalent thickness wet laminate process

RENNtech ECU Upgrade | W212 | E 550 | 480HP / 605 LB-FT | 4.7L V8 BiTurbo | M278 | MY2014-2016 bmw-x5--e70----2010-2013--xdrive35d-3-0-l-i6-twin-turbo-diesel--m57n2--esr5029908 The R1 performance package forECU Upgrade 480HP 605LB FT Gains: +45HP +162LB 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