RENNtech ECU Upgrade Z4 35i E89 (2008-2012 N54B30)

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RENNtech ECU Upgrade Z4 35i E89 (2008-2012 N54B30)RENNtech ECU Upgrade Z4 35i E89 (2008 2012 N54B30). Up to 420 HP + 435 TQ. Gains: +120 HP & +135 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

7L V8 BiTurbo

CLASS S (W 220) 55 AMG Kompressor [2 Filters Required] (HP: 500 | Year: 02 > 05)

457 LB-FT @ 5000 RPM

At its launch

Diffuser Attachments and Rear Lipp Attachment

5L V8 BiTurbo) Stock Performance (at crank):

are evident

Our RENNtech - Rtic Tumblers come with Laser Edged Rt Motorsports and RENNtech Logos

213 - E-Class Sedan non-AMG | MY2016+

Turbo GT (MY2021+)

ECU+ Upgrade | Up to 731 HP / 786 LB-FT | Gains: +88 HP & +65 LB-FT

the SL 550 gains up to 92 HP and 167 LB-FT