RENNtech ECU Upgrade 135i E82 (2008-2010 Manual & Steptronic N54B30) audi-s4--b9---2017-2024--3-0l-turbocharged-v6-tfsi-esr1699755 Utilizes OEM vacuum actuators

RENNtech ECU Upgrade 135i E82 (2008-2010 Manual & Steptronic N54B30) audi-s4--b9---2017-2024--3-0l-turbocharged-v6-tfsi-esr1699755 Utilizes OEM vacuum actuatorsRENNtech ECU Upgrade 135i E82 (2008 2010 Manual & Steptronic 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

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