RENNtech ECU Upgrade for ML 350 (W164- 290 HP / 278 LB-FT) evm By modifying torque output limits

By modifying torque output limits

The long primary tube headers generate incredible power at high RPM's and improved exhaust gas flow with reduced backpressure

fiber is pre-impregnated (hence the name) with resin at a production facility

ceramic coated  long tube headers feature top of the line big tube 2" diameter T-304 stainless steel tubing

RENNtech ECU Upgrade for ML 350 (W164- 290 HP / 278 LB-FT) evm By modifying torque output limitsRENNtech ECU Upgrade for 164 ML 350. up to 290HP and 278LB 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