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

RENNtech Porsche 997 Carrera S (3.8L DFI) ECU Upgrade. Up to 396HP and 320LB-FT.
Gains: +11HP & +10LB-FT
SKU: ECUPOR:54.997.2CS
Retail price without tax: $1,450.00

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 software and approach for Porsche is completely unique and independent from our Mercedes tuning program.

RENNtech tuning software for Porsche offers significant gains in performance and throttle response without sacrificing your daily driver Porsche's reliability. By modifying ignition timing and throttle mapping, optimizing air/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Porsche's true potential.


2009-up 997 Carrera S DFI (3.8L) Stock Performance:

  • 385 HP @ 6500 RPM; 310 LB-FT Torque


Modified Performance:

  • 396 HP and 320 LB/FT Torque



  • +11 HP / + 10 LB-FT


Contact us

7825 SW Ellipse Way, Stuart, FL 34997
(+1) 561 - 845 7888
Mon - Fri 9am - 6pm


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7825 SW Ellipse Way - Stuart, FL 34997
TEL: 561.845.7888 FAX: 561.845.6777 E-MAIL: