The UN BT-50 shares its common rail diesel heritage with the Ranger PJ/PK of the same era, and a custom calibration on a stock UN is built around cleaning up factory fuelling and timing for stronger, more usable torque without compromising reliability on an engine of this age.
For a UN BT-50 running upgraded turbo hardware, a dedicated calibration matched to that setup is essential rather than relying on a stock-style file. Get in touch via Facebook to discuss your specific build.
Transmission tuning availability on the UN’s 5R55S/5R55W 5-speed auto; the same unit fitted to the PJ/PK Ranger is limited given the age of the platform. Confirm current support for your specific vehicle via Facebook before booking.
