RENNtech HHT ECU Upgrade for ML 350 BlueTec (W166- 260 HP / 485 LB-FT) ferrari-f355--1994-1999--esr4582803 Increased speed limit

Increased speed limit

from installation to tuning

700rpm Crank Performance Numbers are calculated with a 14% Drivetrain loss on RWD vehicles

Includes ECU Upgrade and Flat Top Air Box

RENNtech HHT ECU Upgrade for ML 350 BlueTec (W166- 260 HP / 485 LB-FT) ferrari-f355--1994-1999--esr4582803 Increased speed limitRENNtech Hand Held Tuner ECU Upgrade for 166 ML 350 BlueTec. up to 253HP and 485LB FT. Gains: +20HP & +30LB 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.