Porsche XperTune Performance Handheld Tuner - Cayman | 2016 FS-POR-981GT4-ET 90110390601 Integrated Side Output: Allows for

Integrated Side Output: Allows for the use of a wrench on the shaft for added torque

and enhanced fuel efficiency

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Rear axle: 11 J x 21 ET 66 with 295/30 R21 tires 102V XL M+S

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Porsche XperTune Performance Handheld Tuner - Cayman | 2016 FS-POR-981GT4-ET 90110390601 Integrated Side Output: Allows forPorsche XperTune Performance Handheld Tuner For Porsche 981 Cayman GT4 (2016 2016) Models. POWER: Stock Output: 385 Horsepower 310 lb ft Torque Tuned Output: 415 Horsepower 332 lb ft Torque TUNING PROCESS: Read Stock Data: Utilize the provided handheld device to read the original vehicle data through the OBD II port. Write ECU Tune: Transfer the new ECU tune file to the handheld device, and then upload it to the vehicle's ECU using the handheld. Enjoy