hey everyone i need some help on which one is better in ur opinion. i just bought a 2001 dodge cummins its my first diesel so i dont no very much..but my lift pump if going out and my fuel pressure will drop to like 2 or 3 when i stop and go.

Between Fass and AirDog they are pretty much the same thing on what they do, AirDog is just a little cheaper. You may also think about both of these pumps in the non-air removal type pump. The pumps are the same just much cheaper without the air removal system.

Another option is the MITUSA Mechanical Lift Pump that is a belt driven pump. About the same price with no electric motor to cause problems.

Uncle Bubba's Sig:

DIESEL BOMBERS ADMINISTRATOR

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99 Quad Cab, 4wd, Drag Comp W/Pump Wire & Boost Elbow installed, K&N Air Canon, MBRP exhaust, Belt Drive Lift Pump and bottom Bulkhead feed from the tank, Isspro EV Pyrometer, Boost Gauge, Fuel Pressure Gauge, DT Pro Fab Trac Bar, South Bend 13-1.25 Con O Clutch, Ranch Hand Bumper, Borgeson Steering Shaft, Black Silicone Boots, 2" Lift Soft Ride Front Coils, Solenoid High Idle Kit, Bilstein 5100 HD Shocks, Rickson 19.5 Wheels w/Hancoock Rubber, HD Maxx Link Sway Bar Links, Superlift dual front stabilizer, EGR Brakes Front and Back, RV275 Injector's, Blue Chip VP44, Prodigy brake controller, B&W Gooseneck hitch and more I can't remember right now. Not to mention more to come I'm sure.
374.2/846.7 at 30psi

i run the air dogg 150 with filters love it fuel pressure never drops below 14psi at the pump and the filters are so easy to get to and the price of air dogg over fass air dogg is about 200 less than fass and just as good imho and both have lifetime warrantty as long as you pay map price i got mine from luke at diesel dawgs you should hit him up he has great prices and shipping is super fast

cummins army's Sig:

2006 dodge cummins 4x4 auto edge juice with additude 4" staight pipe with cat still to 5" tip

some say the air dog is quieter then fass ?
had the air dog 150 on the 99 loved it

busta's Sig:

i agree with them but it sounds like u better hurry and change the lift pump out or u'll be putting a new injection pump in it quick...

1999 Sport Cummins's Sig:

1999 Dodge CUMMINS Sport 5spd 4x4 Xcab Shortbed Mods:Flashpaq, Byrds Intake Manifold, Pyro & T-Boost,150gph Raptor Lift Pump,Boost Fooler,Elbow Boost,5in exaust 8in tip,100hp injectors,35in Nittos, Motorsport Rims, 2in Lift:need sum head studs

You can't go wrong with either setup

lukesdiesel's Sig:

Diesel Dawgs Performance

Unleash the Dawg!!

828-631-1546

www.DieselDawgs.com

Expandit Exhaust Specials

6.7 Cummins XRT Race Tuner

Cummins 24V Race Injectors

price is where one is better than the other

01quadcab's Sig:

01 edge drag comp, fass 150 with vulcan big line kit,amsoil front to back,custom cold air intake with s&b filter with compounds by Jefferson State Diesel 603hp vp truck. 12.38 1/4 http://jeffersonstatediesel.com also a 99 5spd quad cab 4x4 edge juice with attitude, fass 95, afe intake, 4" lift lumber rack the basic work truck.

Air dog too

Just installed a FASS 150/150, and so far it is running very well. I started a thread with a few picts of where I mounted it. I didn't like the suggestions in the install manual, so I figured out a place that I think is better.

RAWilliams's Sig:

2001 Dodge RAM2500, Ext. Short, 5.9L Cummins. Edge Attitude with Juice, +50HP Fireball Nozzles(thanks to Luke from Diesel Dawgs), FASS 150/150(thanks to Harry at Peak Diesel), MRBP 5" Installer Series (thanks to Kenny from Ken's Performance Solutions), HX35 w/Banks Wastegate Actuator and Edge Elbow, 2.5" leveling kit in front, air bags in the rear. 305/70R16 Goodyear Wrangler Silent Armour's, for winter.
Heavy Equipment Technician (Off Road) by trade.

Now, come on down this way and we can compare notes...

Wyatt Earp's Sig:

Wyatt Earp
Smoke show: 2002 Dodge CTD
Daily Driver: 2003 VW Golf TDI
Other New Car: 2008 MB R320 CDI - Diesel Luxury

Hell yes! Probably going to make a road trip to Chillowack to visit some friends one of these weekends! Maybe a side trip to check out Peak Diesel!

Chilliwack is a bit further east then me yet. Another hour or so to the boat and then 90 minutes across and then 10 minutes to my place. Beer is in the cooler.

As of late FASS wins hands down when it comes to customer service.

bubba do you have the mitusa. if so how hard was it to hook up. and where can a fellow find one....... ..
i love my air dog, it works, and thats good enuff for me... if i had a fass. and it worked.. i would telll ya fass. maybe??

oklahoma_6speed's Sig:

[SIGPIC][/SIGPIC]2001 DODGE. 6 SPEED QUADZILLA ADRENALINE. 5 INCH STRAIGHT PIPED WITH 6 INCH tiP.ARKLAHOMA BOMBER.:old school...its a rural school thingthe new one. 1993 4x4 ect cab in need of donations to make it run better..and thanks to the patience of my beautiful wife for supporting me

i love my airdog great pump

hotcummins's Sig:

its a 12valve with a few performance adders