RENNtech ECU Upgrade Z4 35iS E89 (2008-2012 N54B30to) porsche-911--997-1---2004-2008--carrera--gts-esr3651957 High Pressure Fuel Pump Upgrade

High Pressure Fuel Pump Upgrade Kit M177 - Single Scroll

R1 Performance Package for 220 - S 600

450 rpm Note: Mercedes M177 engine performance when measured on the dyno obtains higher power numbers than rated from factory

The outer rim section between each spoke is heavily scalloped

RENNtech ECU Upgrade for the 117 - CLA 45 AMG

RENNtech ECU Upgrade Z4 35iS E89 (2008-2012 N54B30to) porsche-911--997-1---2004-2008--carrera--gts-esr3651957 High Pressure Fuel Pump UpgradeRENNtech 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