RENNtech ECU+ Upgrade | W166 | GLE 450 SUV | 392 HP/463 LB-FT | 3.0L V6 BiTurbo | M276 mercedes-benz-c-class--204-sedan---2008-2014--c-63--amg-black-series-esr3194090 Includes ECU Upgrade and TCU

Includes ECU Upgrade and TCU Upgrade

428 HP / 317 LB

+ 12 LB-FT

ECU+ Upgrade | Up to 783 HP / 798 LB-FT | Gains: +102 HP & +62 LB-FT

6 (HP: 300 | Year: 11 >)

RENNtech ECU+ Upgrade | W166 | GLE 450 SUV | 392 HP/463 LB-FT | 3.0L V6 BiTurbo | M276 mercedes-benz-c-class--204-sedan---2008-2014--c-63--amg-black-series-esr3194090 Includes ECU Upgrade and TCUECU+ Upgrade Up to 392 HP 463 LB FT Gains: +30 HP & +84 LB FT RENNtech tuning products are certified to meet CARB standards in all 50 States. RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock