I've heard of cotton and other material and materials. Just wanted to know thats all.
p.s. I've heard about 3" Universal Carbon Fiber Heat Shield Air Intake Filter. Is this any good and the best filter?
No.
You're just paying for the glamor of having carbon fiber, you're not getting any serious gains or benefits from it.
It's been proven many many times. All the intakes like to advertise different benefits, but the difference between them is only about .5 horsepower. Not enough to even register, really.
Nevermind that an intake itself, will only net you about 2-3 usable horsepower, and on many cars, actually causes a loss of power. So, ask yourself if the cost of it is worth that.
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