Cold air intakes have been unoffically proven to be all mental for the most part. Like you said, almost all of that power is coming from a tune. Sure it helps in response, and it helps your engine run cooler. But thats about it. Nobody actually dyno's their car after JUST swapping a CAI. For the ones who did that ive seen, they only gained 5-8 hp off of it (going from 87 to 93 octane will give you a better HP result than that).But there is an equal amount of people that have shown no gains after adding one. And as far as company claims go, they can claim anything they want. I read an ad in MM&FF for a cold air kit that added 35hp. Thats more than a Cam swap. Now after saying all of that. Dont get me wrong, it is still a worthwhile mod that is much better over stock. But as far as your question goes, just get something cheap, because its going to give you the same result as the other. K&N especially. They are just a name brand. Theyre like Apple computers. Its not a bad product, but youre going to pay twice the price, to do the same basic function, just for the name.
Black with saddle 1996 Mustang GT convertible. Manual. NPI, 2v 4.6L. Full bolt-ons.