I,m giving the RASP fuel system a hard look to alleviate my ongoing fuel lift pump problems. Other than the high purchase price I think it might fix the $150. 00 ( now$175. 00) every 15,000 mile problem. BUT I will lose the fuel heater of the stock unit when iits not being used. which I think I need here in Alaska to make this truck function in the cold weather. Has anybody dealt with this problem yet and what is the answer? Also it is claimed by the electric pump people that the truck will be more engine quiet as the air will be reduced but not for the mechanical pump I hope. I don,t want it to sound like the new trucks or the Chevys and Fords. I lke the Cummins clatter. Thanks for input.