RENNtech Porsche ECU Upgrade 997 GT3 3.8L (365 HP / 300 LB-FT)

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RENNtech Porsche ECU Upgrade 997 GT3 3.8L (365 HP / 300 LB-FT)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

and weight savings up to 4 kg

appearance and overall quality

Tailpipes with a bigger diameter than stock (105 mm) provide the finishing details to this sports vehicle

RENNtech ECU HHT (HandHeldTuner) for the 219 - CLS55 AMG Kompressor

The R1 performance package increases performance to 696 hp and 801 lb/ft at the crank

Limited Slip Differential and Transmission Upgrade

457 LB-FT @ 5200 RPM

optimizing ignition timing

AMG Customer Logo on Right Sleeve

890 HP and 1062 LB-FT TQ

RENNtech Carbon Fiber Airboxes Fitment:

The maximum power number reached with the RENNtech ECU Upgrade for the AMG GT C is 659 HP and 614 LB-FT