Review on 🔧 Enhance Performance and Protect Your Engine with AirDog 6.6L Duramax Diesel 100 GPH Lift Pump Filter (2001-2010) A4SPBC085 by Djuan Thompson

Improved power response, eliminated "flat spot" in my full throttle acceleration and smoother power curve, seems to run smoother and slightly improves economy of scale. Five stars ***** Since I also installed an oil pan, I called tech support to ask if a return line could be routed in the old, now unused fuel line back to the tank instead of hacking the fuel filler line. He told me no that I needed a different fitting for that. So I clicked on it "IF" I have an adjustment and it said yes it would work. I was obviously making him uncomfortable and seemed only too happy to talk to me on the phone. One star for taking the call. So if you are installing a fuel pan with a priming pump (I did this at the strong recommendation of a mechanic at a diesel truck shop) order this 1/2 fuel line quick connect part as well. Barb to 1/2 Bundy Male Tube at Amazon. Save yourself the hassle of chopping the tank fill line and clogging the old suction line and use the outdated suction line as a return. This is a much cleaner and simpler setup. I'm surprised Air Dog and FASS dealers don't recommend it and don't ship this connector in the package.