RENNtech ECU Upgrade 135i E82 (2008-2010 Manual & Steptronic N54B30) audi-s4--b9---2017-2024--3-0l-turbocharged-v6-tfsi-esr1699755 PANAMERA 4

PANAMERA 4

+ 138 LB-FT

The R1 performance package for the Mercedes 550 includes our proprietary ECU upgrade in addition to our stainless steel shorty headers designed specifically for the 550 V8 for a combination that provides increased performance

Qualified engineers using advanced software and expert technicians using the latest technologies produce BMC air filters

0" | Rear: 22" x 12

RENNtech ECU Upgrade 135i E82 (2008-2010 Manual & Steptronic N54B30) audi-s4--b9---2017-2024--3-0l-turbocharged-v6-tfsi-esr1699755 PANAMERA 4RENNtech 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