Who has all been keeping up with HPTuner now supporting 03-07 5.9L Cummins? It's pretty exciting to see the earlier versions of the 5.9L. I am looking into buying HPTuner for that reaason. But of course they don't have the CSP switchable tuning for the later 5.9L and they haven't touched the 6.7L Cummins.
They also don't have the DSP on the Duramax side.
They also don't have the DSP on the Duramax side.