PNP TUNE SHOP

I already own an RTD4

You already own an HP Tuners RTD4 interface, bought from PNP TUNE or from another dealer: order the tune only. It is linked to your RTD4 serial number and to the vehicle VIN, the HP Tuners credit pool is included and delivery is remote through TDN.

An unlock may be required depending on the ECU: it is shown on the model page.