well i've never actually heard of spiralmax... but i'm guessing its some sort of throttle body modificiation. i used to have a poweraid throttle body spacer on mine... which also was supposed to create a "vortex" of air to give better power, torque, gas mileage, etc. i noticed a little difference, but nothing huge. i wouldn't pay more than $40 or so for an upgrade such as that. you wanna make a real difference... put a new airtube on there with a K&N cone filter.
I think I have seen the infomercial you are talking about. The one I saw was about this fan insert that goes in the air tube supply and "creates" more airflow to the engine. Read a writeup of it somewhere where the results were actually tested and it was minimal. Your call.
:roll: :roll: :roll: You can not get them for making false claims when it fails to work for you, because they are claiming it's possible to see zero gains.
If you feel the urge to buy this, give me $30 and you'll still be $30 ahead :lol: