Porsche 991 GT3 / GT3 RS XperTune Performance Software

Achieve maximum power from the Porsche 991 GT3 3.8L / 4.0L engine without sacrificing driveability or reliability by optimizing the engine's performance. Fabspeed Motorsport offers an alternative tuning method for vehicles equipped with ECU's that traditionally required bench flashing. No longer do you need to remove your ECU and mail it in for a tune. The Handheld device interfaces with the OBD-II port on your vehicle and your computer to complete the tuning process. Simply flash your GT3 with a Fabspeed ECU Tune utilizing the included handheld tuner. Performance ECU software upgrade improves horsepower, torque, and driving characteristics by reprogramming various sensor inputs, air/fuel ratios, and boost pressure (if applicable). COMPATIBILITY Fits all Porsche 991 GT3 3.8L / GT3 RS 4.0L vehicles (2014-2016) POWER: GT3 RS with Stock Hardware Stock = 434 whp / 316 ft-lbs Tuned = 440 whp / 323 ft-lbs Maximum gains of over 15 whp and 10 ft-lbs of torque at 7500 RPM Peak power gains