RENNtech ECU Upgrade for E 350 | W211 | 290 HP / 278 LB-FT | MY2006-2009 rpm Up to 574HP and 543LB-FT

Up to 574HP and 543LB-FT

These high-flow down pipes require ECU reprogramming and are a perfect fit with the Evolution performance exhaust system

Gains: +31HP & +31 LB-FT

R1 Performance Package for 212 - E 63 AMG

E 350 (W211) Stock Performance:

RENNtech ECU Upgrade for E 350 | W211 | 290 HP / 278 LB-FT | MY2006-2009 rpm Up to 574HP and 543LB-FTRENNtech ECU Upgrade for 211 E 350. up to 290HP and 278 LB FT Gains: +22HP & 20LB 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