For all of you that are looking to help you Cummins Turbo Diesel breathe better well there is several different kits, filters, etc. on the market. I'm not going to bend your arm to follow my lead but I will explain why I made this choice.First off there are filters like K & N on the market that are washable and re-useable. Well I'm going to suggest you forget using these filters. When you wash a filter your going to put wear on the media and eventually open holes up in the media to allow passage of dirt. Another problem is most people over oil the filters and the turbo sucks oil in on the compressor wheel. If there is a dirt leak you will see a dirt compressor wheel and it will cause turbo damage.So when you look at a BHAF or similar filter you will see a completely sealed unit. There is no way for dirt to get pass the filter into the engine. Also the BHAF is roughly 3x bigger than the stock panel filter so this allows more air to enter the engine unrestricted. Another bonus is the media is a dry paper element so the dirt will not stick to the media and cause it to plug premature.The down side to a BHAF is the price. They are roughly $50-60 bucks. So if your smart you buy a filter and get the outerwears pre-filter for it. It will protect the filter from heavy dust and water. It will make the filter last for a very long time.I've gotten about 60K miles on my BHAF now and it is now just getting really dirty.Here is also the listing of different part numbers for a BHAF below...Part Numbers of BHAF filters

what do you think of Quadzilla Milage Max? says 8-12% increase in mpg!

Thanks for the info. I try it out. Did you use 1/4 alum?

without a boost fooler, increased air would be detected by the MAP sensor. i believe that the ecm will see the added air and use that reading to determine fueling(ie more fuel). i would think that more fuel will not give better milage on a stock ecm tune. i do not know this for a fact, but merely an observation. correct me if i'm wrong.

what do you think of Quadzilla Milage Max? says 8-12% increase in mpg!

The chip market is a mixed bag really... There is a lot of claims but hard to prove any of them... But like myself using the Edge Comp and running it wide open and keeping the boost low and the pyro low I'm turning 21-22 avg MPG and 25 max MPG.

Thanks for the info. I try it out. Did you use 1/4 alum?

Like mild 1/8" inch aluminum... Like a old road sign would work awesome...

without a boost fooler, increased air would be detected by the MAP sensor.

This is true... The increased boost pressure above 20 PSI will cause the engine to defuel and trip a error code.

i believe that the ecm will see the added air and use that reading to determine fueling(ie more fuel).

Yes... The amount of fuel is deterimned by how much boost is present. More boost more fuel. But if you looking for MPG's you want the reverse lower boost...

i would think that more fuel will not give better milage on a stock ecm tune. i do not know this for a fact, but merely an observation. correct me if i'm wrong.

It's the advanced timing...

This is true... The increased boost pressure above 20 PSI will cause the engine to defuel and trip a error code.

below 20 psi, if you increase the air flow at a given RPM, i believe the ecm is going to match that air with fuel

It's the advanced timing...

i agree 100% but your not going to see any extra timing on a stock ecm tune, so i BHAF usually doesn't increase mileage

i agree 100% but your not going to see any extra timing on a stock ecm tune, so i BHAF usually doesn't increase mileage

By bad... I was busy on the phone and helping other and lost my train of thought... Matter of fact look at this know I think the train jump the track. :rolleyes2:

What has everyone used to place over the studs under the BHAF to keep it from damaging it?

Either pop the little thumb nuts out of the stock air box... Or build a heatshield and use 6 nuts... 3 below the plate to raise it up slightly and 3 on top to tighten it up. This way the studs are nearly flush with the heatshield. But still cover your A/C line with a piece of hose to protect it from rubbing...

It does look good!! Where did you get filter and outerware? What # filter? How much $$$ ?

Setup does look good!! Where did you get filter and outerware cover? What filter # ? How much$$$ ?

Vulcan Performance...Filter is like 39.00 and Outwear is another 29.00

For Information purpose... http://www.vulcanperformance.com/SearchResults.asp?Search=bhaf This is the best deal I've seen on the web...

I'll have to look at getting the big air filter once I get the lift pump and gauge package bought and installed when it's a little warmer outside to work on it.

Good info on the traditional paper BHAF. I am running an AMSOIL Nanofiber 4510. It is also a dry filter and costs about the same as a BHAF. I can also clean it with compressed air. I still have my old BHAF that I used to run, and it was a great filter. I'd like to see comparative CFM testing side by side with the Nanofiber and the traditional BHAF. Based on many customer reports, the Nanos have yielded more turbo whistle, lower EGTs, and quicker "seat of the pants" spool up. Of course, the overall point to all this that I think most diesel guys will agree to is that the key to good air filtration on diesels is to run a dry filter. Oiled filters start to cause problems in the real world under the CFM demand stress of these engines. -Chuck

this is one of those things i am still debating with before I purchase either nanofiber or bhaf

this is one of those things i am still debating with before I purchase either nanofiber or bhaf

when i pop my hood and everyone sees that BHAF.....everyones is like"whoa" or "did you pillage that off a CAT?". it lasts a long life and i am happy with mine...DROP INS SUCK!

No joke... Mine is heading towards 6 years of life and the filter minder still hasn't moved yet...

Six years? Wow that is cool.

The Outerware prefilter protective filter cover really make these filters last a lot longer due to how they catch a lot of material that would otherwise become embedded in the paper filter. When the engine gets shut off, the material just falls away from the prefilter cover. They are kinda like a hair net but much more finer in mesh.

Do you know how much the pre-filter costs?

Do you know how much the pre-filter costs?

Here is where I got mine: http://www.vulcanperformance.com/Outerwears-Prefilter-for-the-Big-Honkin-Air-Filte-p/1085.htm