We have alot of equipment with the 8.3L cummins in them. So, we have some HX50s laying around. My dad asked what a HX50 off of a 8.3L would do in one of our 5.9s? He said he thought the spool would be way to low for just everyday driving, but wondered about making it the big trubo in a twins setup. Anyone have any ideas on this? Probably nothing will happen anytime soon, but just a thought.