Donaldson B085011 Dura Lite Air Filter 11.00 in. Body Length, Primary Type, Round Style, Cellulose Media Type

Its a Big Filter. what more do you want. I run them in my 7.3s

This filter works great in my 2001 F250 7.3. It is definitely louder than the original, which I really like. When I let off the gas with the turbo spooled I can now very clearly hear the blow off valve. It sounds great.The flow and filtration of these filters is also excellent. This is well documented on forums if you want to check into this.The install was pretty simple. Basically remove the stock air box and filter, and put this in. You will need an extension tube, and new clamp. I used the following items:Spectre Performance 9709 4" Straight Aluminum Intake TubeHPS (SSTC-108-116) 108mm - 116mm Stainless Steel T-Bolt Clamp for 4" HoseThese two pieces made the install very easy.

Fit nicely on my 5.9 Cummins BHAF

This was the exact filter we needed and at half the cost of the auto parts stores. The shipping was fast. I highly recommend it

Worked for obs ford

Just picked up my 3rd of these filters. Converted from the original airbox to this filter using some clamps and a 4" piece of tube (all recommended with this filter). Checking the air duct during replacement shows that this filter does do a great job at keeping the air very clean, exactly what it's purpose is. Does a better job than the original airbox at cleaning the air and I can't recommend this enough.

Let your work horse breath! I have it on my 01 2500 ram with 5.9 Cummins and it is direct fit. Remove stock filter box and this baby just directly goes in to stock air intake. 5.9 Cummins loves two things lots of air and lots of fuel, and new transmission if you want to count third.

I only have the "started and runs" test done, but there are so many factors that go into power and fuel efficiency that I wouldn't comment on those anyway. Sounds roughly the same.Be aware of your installation situation. I have an early '99 Ford 7.3 Powerstroke, and this requires a 45-degree elbow with a little length to it in order to replace the stock air filter housing. This is not a direct fit, and people will say "you just need a little piece of 4" pipe," but that's not the case for the old body style (OBS) or early-99 7.3.