RENNtech Porsche ECU Upgrade 997 GT3 (435 HP / 314 LB-FT) audi-rs4--8k---2012-2015--4-2l-v8-fsi-esr2470407 ): 188 HP @ 3

):                        188  HP @ 3

Up to 620HP and 522LB-FT

The design is perfect as a stand alone component or in conjunction with our other component exterior aerodynamic upgrades such as our CLS rear diffuser and 3pc carbon fiber splitter

CLASS R LONG (V 251) 350 V6 Blue Efficiency (HP: 306 | Year: 12 > )

RENNtech Porsche ECU Upgrade 997 GT3 (435 HP / 314 LB-FT) audi-rs4--8k---2012-2015--4-2l-v8-fsi-esr2470407 ): 188 HP @ 3RENNtech Porsche ECU Upgrade 997 GT3. Up to 435HP and 314TQ. Gains: +20HP & 15TQ Our proprietary Porsche 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 tuning software and