The search button is your friend.

 

Yes, the search button should be your friend. There's tons of information on this site, and a lot of knowledgeable people.
I would also suggest an Outerwears prefilter also. You have to find the part number though , just kidding....the h20 resistant one is WR3325-105 and the standard, just take off the "WR". I got mine in red.

 

I got my silencer ring off but there isnt a whole lot difference in the sound but hopefully it will help on mpg like some of you guys said. Is the BHAF on napas site just a napa gold air filter, and i have part#'s for other brands but all that comes up is the napa one. and do these fiters come with any way to mount them or to you have to make it all yourself

 

As suggested, do your homework!

Click on search at top of page....type in air filters. You will find 375 discussions and answers to any question you will probably ever ask.
Than you'll have real knowledge on how best to spend your money for your truck, your hp level and your type driving!

BHAF is just one solution to more air for a CTD.