My friends truck has a k&n intake on it and he is wanting to get rid of the filter. The pipe it hooks to is 4". I've looked at S&B and AFE but I cant find one that fits. Does anybody have a part number for a good sized filter?

 

I love my Amsoil nano filterDry filter, last forever I got the pre-filter with it as well.

 

I'm running the full Banks intake with box, and I'm loving it. Are you replacing just the filter and running a stock box or are you running a cone style filter?

 

I put a 2nd gen manifold on the truck so I cant run a full intake setup. All thats on there is a 45* aluminum pipe with a k&n filter on it. I saw a picture of a big oval filter but I can't remember who made it.

 

I'm running an aFe ProDry filter on my K&N intake system... You just need to get the 4" to 5" reducer along with it.

 

I have afe cx stage 2. Came with the cover but ripped it off. Makes the turbo pretty loud. Sounds great