Thanks Ugly Truck... i may try and fab my own heat shield... it doesnt look too hard. As far as the pre filter, is anyone really using that? im not sure its worth it.

 

IMO >I think they are totally worth it. as much as the BAHF costs, if I can block the large particles first before they get into and clog the pleated filter and then rely on the pleated filter to catch the small stuff I personally think it will more than double the life of the BAHF. We have run them on air filters and oil breather filters on the dirt track cars forever specifically for that reason.

 

I have the prefilter on my truck. It helps resist water, and catches a lot of dirt.

 

Why are you guys still using the BHAF when you can get a WASHABLE dry filter that will last you forever for a couple of bucks more than the BHAF??? It makes no sense to me at all.

 

Because I don't want to drop another 200+ bucks on a new cold air intake at the moment when I have other vehicles to take care of as well.

 

You dont have to - you can just buy the FILTER...same as buying a BHAF except you can WASH it

 

well i got a BHAF and also ordered the prefilter...will have it waiting for me when i get home from south korea(in march of 2013) any other homemade ideas for the 24v cummins is what im looking for. Thanks guys!!

 

You dont have to. Its just like Dr. Evil said. There are two filters from Amsoil that are becoming popular for this, one has a 4" inlet just the BHAF, just swap it on there just like the BHAF. The other is a larger filter with a 4.5" inlet, that requires a little PVC adapting.

The 4090 4" inlet
Amsoil EaAU 4090 Nanofiber Air Filter - Icebox Cold Air Intake Systems

The 4510 4.5" inlet
Amsoil EaAU 4510 Nanofiber Air Filter - Icebox Cold Air Intake Systems

They are both dry filters, do not require oiling. I wont bother you with details, just do some searches on this forum or google about them. Less filter area than a BHAF, but flow better, and still filter well.

 

the pre filter really cuts the flow down on the air filter. I would not run it if you want it to breath...