RENNtech ECU Upgrade 335i/iX E90/E92/E93 (2007-2010 Manual & Steptronic N54B30) jaguar-f-type-p450-v8-esr6090363 the wing attaches to a

the wing attaches to a fixed wing base

The R3+ upgrade features RENNtech’s Stage II turbochargers with lightweight forged billet turbo wheels with larger impellers (inlet side) and an increase in the turbine trim (exhaust side)

X 5 (E70) M 4

While slippage in the torque converter is important under acceleration

RENNtech ECU Upgrade 335i/iX E90/E92/E93 (2007-2010 Manual & Steptronic N54B30) jaguar-f-type-p450-v8-esr6090363 the wing attaches to aRENNtech ECU Upgrade 335i iX E90 E92 E93 (2007 2010 Manual & Steptronic N54B30). Up to 420 HP + +435 TQ. Gains: +120 HP 135 TQ. 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,