Porsche®* Cayenne®* S 4.5L V8 stage1

Unitronic is proud to present it’s complete tuning solution for the Cayenne S 4.5L V8

After much research and development, Unitronic’s comprehensive ECU re-calibration refines and boosts the performance of the Cayenne S 4.5L V8 and sets the industry standard for reliability and power. The refinements in power delivery provide a large increase in low RPM torque as well as a substantial increase in top end power delivery. Tuning with all factory safety limiters maintained, Unitronic offers performance software and hardware to match your demand for performance and reliability.

The power that should have been there from the factory is unleashed with Unitronic’s ECU upgrade for the Cayenne S 4.5L V8

Stock Power : 340HP / 310LB-TQ

Unitronic stage1 : 359HP / 332LB-TQ

Price : $ 949 (USD)
Regular price : $ 999 (USD)
You save $ 50 (USD) until December 29th, 2014


Performance Software Precisely Engineered to Run on a Completely Stock Car.
gas type

Gas type

Optimized for 91 Octane / 95 Ron gas


Flashed directly through the (OBDII) Diagnostic port of your vehicle (5-10 minutes).
(In some rare cases we may require a little more time. In any event we will keep you informed once we receive your ECU.)


  • Engineered with Strict Industry Standards
  • Extensively Tested Under Various Driving Conditions
  • Factory Safety Limiters Retained
  • Greatest Power and Torque Gains in the Industry, Guaranteed!
  • Optimized Responsiveness and Drivability
  • Optimized Smoothness and Driving Comfort
  • Power Delivery Perfectly Optimized Throughout the Power Band
  • Improved Fuel Efficiency


ecu stage power levels gain over stock octane dyno runs
Stock 340HP / 310TQ - - Stock Power


359HP / 332TQ +19HP / +22TQ 91 Octane / 95 Ron gas -

Dyno Graph

Software Installation

Upgrade Pricing Chart

Unitronic Software Guarantee

Unitronic Software Warranty

Unitronic Hardware Warranty

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