Fabspeed Porsche 958 Cayenne S / GTS XperTune Performance Software (2011-2014) FS.POR.958V8.ET

Achieve maximum power gains and drivability without sacrificing reliability. Easily flash your Cayenne with a Fabspeed ECU Tune utilizing the included handheld device.

Fabspeed Motorsport offers an alternative tuning method for vehicles equipped with ECUs that traditionally required bench flashing. No longer do you need to remove your Cayenne's ECU and mail it in for a tune. The Handheld device interfaces with the OBD-II port on your Porsche and your computer to complete the tuning process.

Tuning Process

1. Read Stock Data: Connect the Handheld device to your vehicle via the OBD-II port and read the stock data.
2. Interface with Software: Connect the Handheld to your PC/Windows computer (Mac OS not supported) and send the data to Fabspeed Motorsport via email.
3. Receive Custom Tune: Fabspeed uses your data and vehicle information to create a custom tune. The tune is emailed back to you within 1-2 business days.
4. Flash ECU Tune: Write the Fabspeed ECU Tune to your Handheld, then to the vehicle using the Handheld device.
5. Return to Stock Anytime: Easily revert to the stock tune using the Handheld device and reflash to the Fabspeed ECU Tune as needed.

Power Gains

Porsche 958 Cayenne S 4.8L:

• Stock: 400 WHP / 369 TQ
• Tuned: 420 WHP / 384 TQ

Porsche 958 Cayenne GTS 4.8L:

• Stock: 420 WHP / 380 TQ
• Tuned: 440 WHP / 395 TQ

Notes

• Review Tuning Guide: You must review our MyGenius ECU Tuning Guide and email the ECU Tuning Information form to us. This ensures we meet your needs and consider your modifications to deliver the best possible results.
• PC/Windows Required: You must have access to a PC/Windows computer to upload your factory file information and apply our ECU Tune to your Handheld device.
• Custom Tune: Our tuner will email you a custom ECU Tune within 1-2 business days upon receiving your vehicle information.
• Device Compatibility: The Handheld device "marries" with your vehicle and can only be used on one vehicle.
• Special Requests: Special requests and tune file upgrades may be subject to additional fees.
• Tutorial Video: Need help using our XperTune Handheld Tuner? Watch our tuning tutorial video!

Purchase Disclaimer

Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicle's electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls.