You guys that have said you can install one of these in 2-3 hours are full of it. It takes 30 minutes just to read the instructions, lay out all the parts, get all the tools ready, chock the wheels, and unhook the batteries. You still have to remove all the old stock lines, lift pump, and filter, etc., drop the tank, make fuel lines, fasten everything, figure routing, install draw straw (cut it, clean old box and screens, clean out tank junk), mount pump (holy bat shortbed $#&^%!*@@), connect lines, connect and route wires, tape up old connectors, zip tie everything, re-install tank, fill water separator, fill tank back up with diesel, reconnect batteries, prime system, start, check for leaks, clean up tools, remove wheel chocks, take a shower.
It took me 2 hours just to mount the pump. I had to modify alot of things and get a different tighter 90 degree fitting which I had to order online and wait for. I have ALOT more than 2-3 hours for the whole job, but I am also a perfectionist. That is all - LIARS.