2021 Ram 3500 H.O.

4x4ord wrote:
Conversion kit for Cummins

I can’t imagine the labour being much on a Cummins. Apparently it doesn’t require tuning which makes me think this CP3 is modified to put out more pressure than the CP3 previously used on the Cummins.

It doesn't require tuning because it is not a stock CP3. It has a 10mm "strocker" camshaft which increases pressure over a stock CP3.