RENNtech Porsche 997 Carrera (3.6L DFI) ECU Upgrade (365 HP / 300 LB-FT) mercedes-benz-s-class--222---2018-2020--s450-biturbo-esr1451600 7 Series LONG (E66) 730

7 Series LONG (E66) 730 d/Ld (HP: 217 | Year: 02 > 04)

R1 Performance Package for 171 - SLK 55 AMG

3rd generation Diverter Valve RENNtech is able to add up to 91 HP and 132 LB-FT to the 5

greater exhaust gas volume and better sound

691 HP   694 LB-FT   W222 - AMG S 63 ECU Upgrade

RENNtech Porsche 997 Carrera (3.6L DFI) ECU Upgrade (365 HP / 300 LB-FT) mercedes-benz-s-class--222---2018-2020--s450-biturbo-esr1451600 7 Series LONG (E66) 730RENNtech Porsche 997 Carrera (3. 6L DFI) ECU Upgrade. Up to 365HP and 300LB FT. Gains: +20HP & +12LB FT 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