The lifetime warranty on the AirDogs/Raptor is great, BUT....if it goes out on me at 2am on the way home from work, or 800 miles from home, it does me no good.Also have read too many negatives on these pumps IMHO.I am in the process of putting together a custom system, and will use the Walbro, for a couple reasons.Cost, reliability, ease of change-out on side of the road. For a hundred bucks, you could carry a spare.