OK I need a real honest opinion. I have read and studied all the propaganda about how a pump and filter system as exampled by Fass and Air Dog will help save injectors by eliminating air and only pure fuel going to the injectors. I currently use a Baldwin water separator, and Donaldson 2 micron filters for my other Cummins powered pickups. I recently acquired a 2009 6.7. Fully deleted H &S tuner with Transmission unlocked but only use a box tune. I use this truck on my quail and deer leases for the four months I am in Texas. My question: Should I buy either the Fass or Air Dog complete kit with fuel straw in the tank or just install the two filters mentioned below the driver seat. Do these 100 gph kits really help protect the injectors and being efficient help fuel mileage?