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Power and torque delivery are improved across the rev range
With the proprietary RENNtech ECU Upgrade the R172 - SLC 43 AMG gains up to +41 HP and +62 LB-FT
Increased speed limit
164 - ML 63 AMG
Confirm If Your Car Is Equipped With Factory Exhaust Valves*
RENNtech Porsche 997 Carrera S (3.8L DFI) ECU Upgrade (365 HP / 300 LB-FT) ferrari-california--2008-2017--esr8078893 Power and torque delivery areRENNtech Porsche 997 Carrera S (3. 8L DFI) ECU Upgrade. 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
US$ 115.50
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