RENNtech Porsche ECU Upgrade 997 GT3 3.8L (365 HP / 300 LB-FT) aston-martin-db11-esr9576184 871 LB-FT @ 6

871 LB-FT @ 6

Testing showed each Intercooler pump flows an impressive 8

Installation instructions included

We have found the new M133 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz

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

RENNtech Porsche ECU Upgrade 997 GT3 3.8L (365 HP / 300 LB-FT) aston-martin-db11-esr9576184 871 LB-FT @ 6RENNtech 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