Almost all of the major companies do. I have the AEM CAI and like it alot quick install and it's a dry filter that can be smacked clean or just run under some water and needs no oil.
Check out Quadratec.com or 4WD.com they have the best websites.Also they will send you catalogs for free.(excellent bathroom read!)
If you have a 4 wheelparts store by you and you order from 4WD you get free shipping to the store.Also 4 wheelparts carries alot of the CAI in store.Plus they always have deals going on.
