RENNtech ECU Upgrade E 350 | C207 | 290HP / 278 LB-FT | MY2010-2011 mercedes-benz-gls-class--166---2017-2019--gls-63-amg-esr3017727 8L Stock Performance:

8L Stock Performance:

Power kW 491

Fuel Management System: Increased flow and pressure to meet the demand of upgraded performance parts including Turbos and ECU

FEA ANALYSIS

Dyno measured by RENNtech (peak):                 681 HP @ 6

RENNtech ECU Upgrade E 350 | C207 | 290HP / 278 LB-FT | MY2010-2011 mercedes-benz-gls-class--166---2017-2019--gls-63-amg-esr3017727 8L Stock Performance:RENNtech ECU Upgrade for 207 E 350. Up to 290HP and 278 LB FT. Gains: +22HP & 20 LB FT RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability. RENNtech tuning software