RENNtech ECU Upgrade Z4 35iS E89 (2008-2012 N54B30to) porsche-911--997-1---2004-2008--carrera--gts-esr3651957 RENNtech ECU Upgrade for the

RENNtech ECU Upgrade for the 117 - CLA 45 AMG

The outer rim section between each spoke is heavily scalloped

User can load their custom setting onto the HSM to set the vehicle to their preffered ride height

Upgraded Performance:

High Pressure Fuel Pump Upgrade Kit M177 - Single Scroll

RENNtech ECU Upgrade Z4 35iS E89 (2008-2012 N54B30to) porsche-911--997-1---2004-2008--carrera--gts-esr3651957 RENNtech ECU Upgrade for theRENNtech ECU Upgrade Z4 35iS E89 (2008 2012 N54B30to). Up to 420 HP + 435 TQ. Gains: +100 HP & +103 LB FT Our proprietary BMW 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