Yes, I feel the stock pump does. So far, all the 1/2 day long highway runs have been good (well over 800 miles so far). Next weekend we are planning a long day run which should be about 800 miles in one shot, so more to come. I do plan to install and external pump at the cab heater bracket (have to make a plate to attach to that bracket and use the existing holes in the frame right below it). Looking at using Raptor RP100 as the pump.

Cheers.

__________________