Excellent Write-Up on the Twins and Now Fass/AirDog!:U::U::U:

nice right up :U:

Airdog on the 01, Fass on the 02 .Great write up.:U:

Which one do you like better Mike?

The airdog,hands down. I dont have to here the pump run.

Everybody says the Fass pumps are noisy. I have a 150 FASS on my 01 CTD and it's wisper quiet compared to the Air dog 150 on my buddies 04 CTD. Makes me wonder if it's working. :humm:

The New FASS pumps are much quieter than the older ones.

IDK it was on the truck when I purchased it 4 years ago. Along with the fuel pressure gauge that the local dodge dealer fried. :argh:

Is there a power gain with the ether? i have a stock truck and everyone says to put an airdog on first before adding power.. does this add any power tho?

So, with either the air dog, or the fass-do I get to #@$& can the in-tank pump? I've been fighting an irritating, hard to diagnose "stumble" at idle, and the power seems a bit lower than normal...I had to downshift to 5th to keep up with a duramax. we were pulling a 9% grade, with nearly identical sized trailers in tow.(oh-the shame...) :booo: