Dale prefers the EFI Supertune tuner over more expensive and complicated methods of tuning electronic fuel injection. The EFI Supertune tuner does not require re-mapping of the EFI. It is a simple but precise tuning box that can add fuel in the low, mid and top end rpm range. The R6s EFI Supertune tuner comes with base settings that will be close for our high pipe slip-on. It is easy to fine tune and a dyno is not needed to do so.