RENNtech Porsche ECU Upgrade 997 GT3 3.8L (365 HP / 300 LB-FT) aston-martin-db11-esr9576184 G 550 (W463) | MY2017+

G 550 (W463) | MY2017+ | 4x4 | M176 | 4

to remedy the factory weaknesses

CL 63 AMG (C216 | MY2010-14 | RWD | M157 | 5

Testing showed each Intercooler pump flows an impressive 8

The R3+ upgrade features RENNtech’s Stage II turbochargers with lightweight forged billet turbo wheels with a larger impellers (inlet side) and an increase in the turbine trim (exhaust side)

RENNtech Porsche ECU Upgrade 997 GT3 3.8L (365 HP / 300 LB-FT) aston-martin-db11-esr9576184 G 550 (W463) | MY2017+RENNtech Porsche ECU Upgrade 997 GT3 3. 8L. Up to 396HP and 320LB FT. Gains: +11HP & +10LB 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 proprietary tuning