RENNtech Smart Car ECU Upgrade (69HP/66LB-FT) evm RENNtech is proud to introduce

RENNtech is proud to introduce an all new rear decklid spoiler design for the Mercedes-Benz S-Class

The rollbar is designed for minimal interference of rearview if left in place between track events

Model Year 2001 – 2003 : HHT (ME2

Z4 35iS  E89 (2008-2012 N54B30to) Stock Performance:

RENNtech Smart Car ECU Upgrade (69HP/66LB-FT) evm RENNtech is proud to introduceRENNtech Smart Car ECU Upgrade. Up to 69HP and 66LB FT. Gains: +5HP & +5LB FT Our proprietary SMART ECU upgrade offers rock solid performance from RENNtech, the foremost tuning authority on Bosch and Siemens engine control units. These same units are utilized in Mercedes Benz vehicles, which RENNtech has been tuning since electronic engine management started to show up in vehicles during the mid 1980's, though our proprietary tuning software and