RENNtech ECU Upgrade Z4 35iS E89 (2008-2012 N54B30to) mercedes-benz-e-class-sedan--210---1996-2002--e-320-esr2744801 Up to 620HP and 522LB-FT

Up to 620HP and 522LB-FT

The RENNtech Track Series is a fully forged wheel derived from RENNtech’s extensive motorsports background and engineering expertise

CLASS C (W 203) 320 V6 [Needs 2 Filters] (HP: 218 | Year: 00 > 05)

are evident

599 whp @ 5

RENNtech ECU Upgrade Z4 35iS E89 (2008-2012 N54B30to) mercedes-benz-e-class-sedan--210---1996-2002--e-320-esr2744801 Up to 620HP and 522LB-FTRENNtech 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