Fifteen horsepower from a file. This is the 91-octane calibration for a naturally aspirated Pro R.
+15 HP | 91 octane | Calibration only
The factory ECU is conservative on purpose. We recalibrate it for the fuel you run and the way you drive, and the car gives back 15 horsepower it always had.
All orders are hand built once payment in full has been received. Typical ship times are 1-3 business days