Hi, I am a proud new owner of a 2001 cummins 24v and would like to replace the air box. It has a hairline crack in it (not enough to let dust through, but its there and it bothers me). What are the best options out there to replace the box? Should I just get another stock one form a JY or go aftermarket? Dont want to spend a whole lot of money, but any suggestions are appreciated. It has some banks stuff on it (exhaust, high ram thing, and some sort of chip).

 

better to go aftermarket, and lots to choose from.

 

any brands/models in particular to look at? the only one i really know of is AFE and their stuff seems quite overpriced

 

napa part number 2790 .Its a large paper air filter that bolts right on to your stock tube.Toss the rest of the old box away

 

they're all a little pricey but its kinda a one time thing, i like the afe myself and a few buddies run them also. i just dont like the BHAF but it is an option.

 

Here try this one. click on the item #42790 and you can see the filter.
http://www.fleetfilter.com/Store_Vie...cts.asp?Cat=53

This is the "BHAF" (Big Honkin Air Filter) Do a search on BHAF in this fourm

 

I am going to replace my BHAF with a S and B system. They draw air from the stock location rather than under the hood. According to their tests they have a higher level of filtration and flow more than others. Priced right too.

 

I've been looking at either the S&B intake or one called Icebox.

 

I got the AFE stage 2. The fit and installation are pretty good. If you search for them on fleabay, you will find a couple places that have them for pretty good prices.

Check this item number on fleabay 330151884169. that is the cheapest I have ever seen for the afe stage 2 with the pro dry filter. It's less than what I paid and I thought I got a good deal.

One thing for sure, you can hear the turbo whistle quite a bit more with the AFE filter.

WR

 

Unless you are going to seriuosly add more mods, I would get anothet stock box and add a K&N. That will get you at least 80% of the rest. K&N is controversial on this site, some love em, some hate em. I have had no problems, tubo is always clean at oil change time.
The stock location draws outside air & is well protected from the elements. Perhaps these other soltions are OK, but they look to me like weather/rain/snow may be an issue. It is hard to beat K&N for the money, at least if you are happy with it.
My $02!

 

Does that filter go on the turbo or the end of the tube to the air box.

 

Just recently removed the stock box/K&N filter even after "swiss cheesing" the stock box. It seems the oil was being sucked out of the K&N into the turbo...not a good thing. Probably the cheapest and easiest upgrade out there $79. I Installed amsoil dry airfilter ID 4.5 on to pvc 4.5OD and into the stock turbo intake. You can go one step further and build a heatshield also. Turbo "seems" to spool up faster and overall breathe easier. Just my .02 and I wasn't going to drop $250+ on a filter system made up of $100 in parts. All are good ideas just go w/what you can afford and works best w/your set up.