SKU: POR.958V8.ET
Porsche 958 Cayenne S / GTS XperTune Performance Software (2011-2014)
Boost your Porsche 958 Cayenne S or GTS 4.8L with Fabspeed XperTune Performance Software and handheld tuner. This ECU flash delivers 20 WHP and 15 TQ gains while maintaining reliability and drivability. Flash directly via OBD-II port without removing the ECU.
Key Features
- Power Gains: Cayenne S stock 400 WHP/369 TQ to tuned 420 WHP/384 TQ. GTS stock 420 WHP/380 TQ to 440 WHP/395 TQ
- Handheld Tuner: Interfaces with OBD-II port and PC for reading stock data, sending to Fabspeed, receiving custom tune, and flashing vehicle
- Custom Tuning: Fabspeed creates file based on your read data, vehicle info, and modifications. delivered in 1-2 business days
- Reversible Process: Flash back to stock anytime using handheld. no ECU removal or mailing required
- Simple 5-Step Process: Read via OBD-II, email data, receive tune, write to handheld, flash vehicle and drive
Product Notes
- Review MyGenius ECU Tuning Guide PDF and email ECU Tuning Information form to Fabspeed before starting
- Requires Windows PC (Mac not supported) for data transfer. handheld pairs to one vehicle only
- Tune upgrades or special requests may incur extra fees
Installation Notes
- Professional installation recommended.
- OBD-II port flash takes minutes. follow included tuning guide and watch tutorial video
- No hardware changes. compatible with factory ECU on specified models
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2014 | Porsche | Cayenne | S 4.8L V8 |
| 2012-2014 | Porsche | Cayenne | GTS 4.8L V8 |
Why Choose Fabspeed?
- Proven Porsche tuning expertise with motorsport heritage
- Custom files ensure gains match your exact setup
- Reliable drivability preserved in every tune
Frequently Asked Questions
- Q: Which Porsche Cayenne models fit this tune?
A: Fits 2011-2014 Cayenne S 4.8L V8 and 2012-2014 Cayenne GTS 4.8L V8. confirm via tuning form - Q: Do I mail my ECU?
A: No, handheld reads/writes via OBD-II. process stock data only via email - Q: How long for custom tune and warranty?
A: 1-2 business days. backed by Fabspeed reliability guarantee, reversible to stock
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact box for handheld device and cables
- Weight: 1 lb
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