GDP MPVI4 Single Support Pack (20-22 GM 1500 3.0L LM2 Duramax) 19-21_CUMMINS_6.7 Well now with our splitter

Well now with our splitter you can have multiple aftermarket products running through your OBDII port at the same time

allows you to effortlessly optimize your vehicle's performance with a few simple clicks

It is no longer necessary to send in your ECM

The HP Tuners TCM module will allow you to write transmission tunes to your vehicle

GDP MPVI4 Single Support Pack (20-22 GM 1500 3.0L LM2 Duramax) 19-21_CUMMINS_6.7 Well now with our splitterRequires E46 ECM to be unlocked by HP Tuners (sold separately) Requires HP Tuners MPVI4 interface (sold separately) Requires 6 HP Tuners Universal Credits (sold separately) Levels 1, 2 or 3