[Vanner]

It goes without saying a-b-a controlled experiments, especially with different lengths of pipe to test the applicability of Mech's wave theory, would be far and away more conclusive and useful than a forum theoretical discussion. Keep us posted, whatthe. Until then we don't have any.

Secondly, I'm going to do something dumb and defend myself against these oblique attacks on my character, but I don't understand why this has to be personal. "Overt hostility?" I think not. I do not care whether CAI's are performance mods, but that is what they are designed for. So when someone comes by and says "btw, they increase fuel economy too, here's my hunch as evidence" a little red flag goes up in my head. Now Mech has finally presented a theoretical explanation, good, lets test it!

Finally there is no such thing as a negligible improvement, it either offsets the cost of installation, labor, and additional noise or it doesn't.

I guess, whatthe, my list of reasons for saying "that sucks" is no explanation towards how its possible (until Mech's post), no data to the contrary, and no adoption from the factory (except in sports cars). Manufacturers take great pains to tune their intakes (albeit mostly for noise reduction), and if CAI's were worth it they'd be everywhere. Again, sorry this is personal, but it seems all too often that you come across a post on a car forum where the poster says 'this is magic' without a list of reasons or data to show why.