SKU: POR.991GT3.ET
Porsche 991 GT3 / GT3 RS XperTune Performance Software (2014-2016)
Fabspeed XperTune Performance Software delivers more horsepower and torque to Porsche 991 GT3 3.8L and GT3 RS 4.0L engines (2014-2016) through precise ECU reprogramming. This handheld tuner connects via OBD-II port for easy flashing without ECU removal or bench tuning. Drivers gain improved throttle response and power delivery while maintaining reliability.
Key Features
- Handheld Tuner: Interfaces with OBD-II port and PC to read stock data, send for custom tune, and flash vehicle in minutes
- Power Gains: GT3 RS stock hardware jumps from 434 whp/316 ft-lbs to 440 whp/323 ft-lbs with peaks of 15 whp and 10 ft-lbs at 7500 RPM
- Custom Tuning: Email vehicle data to [email protected] for a tailored file in 1-2 business days based on your setup
- Reversible Process: Flash back to stock anytime using the handheld, no ECU shipping required
- Driveability Focus: Adjusts sensor inputs, air/fuel ratios for sharper response without compromising daily usability
Product Notes
- Requires Windows PC (Mac not supported) to process files. handheld pairs to one vehicle only
- Submit ECU Tuning Information form with mods for best results. special requests may incur fees
- Handheld ships ready for stock data read. custom tune emailed within 1-2 business days
Installation Notes
- Professional installation recommended.
- Follow 5-step process: read stock via OBD-II, email data, receive custom file, load to handheld, flash vehicle
- No hardware changes. uses standard OBD-II port and included USB interface
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2016 | Porsche | 911 | GT3 3.8L |
| 2016 | Porsche | 911 | GT3 RS 4.0L |
Why Choose Fabspeed?
- Proven motorsport engineering for Porsche enthusiasts
- Custom tunes match exact hardware for real-world gains
- Reliable handheld system simplifies ECU upgrades
Frequently Asked Questions
- Q: Which Porsche 991 models fit this tune?
A: All 2014-2016 991 GT3 3.8L and 2016 GT3 RS 4.0L vehicles - Q: Do I need to mail my ECU?
A: No, handheld reads and flashes via OBD-II. just email data for custom file - Q: Can I return to stock?
A: Yes, reflash stock map anytime with the handheld device
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Compact box 8x6x3 inches
- Weight: 1 lb
Reviews
There are no reviews yet.