[n0useforaname]

Here is my opinion, until someone can show me Dyno and Filtering results on a stock truck, or one that just has an exhaust and programmer set to run the truck under 500HP, then do the tests with aftermarket CAI and without...then I would stick with a stock one. I know I have an aftermarket CAI....but it was free with my exhaust, and my wife thought it would look "Cool". I haven't noticed a difference in EGTs or MPG or Performance. All companies seem to do these "tests" to prove their filters are the best, but if you read carefully, they basically do tests that they KNOW their filters will perform better with. That S&B truth about filters is a pile of crap in my opinion. That guy randomly pops up claiming they test against all filters, but never tested against Banks. And when I ask why? I get NO answer. Don't waste your money unless you want it for looks. And for K&N, I saw a couple websites that did filtering tests with them, and it let too much dirt through...and they weren't done by AFE or any other filter company. They were independent researchers looking for a good filter.