Originally Posted by Blacdout96
good for cooling brake rotors, no, good for relieving high pressure build up in the fender area, yes. Alot fo people talk about using ducts and what not for braking, but thay are only functional if your brakes are built to take it, or for the duty. Heating up brakes and then rapidly cooling them is going to cause warpage unless you use High performance rotors, not to mention, As my racing teachers told me, you want your brakes to stay hot (not too hot to cause fad, but hot enough to grip).
In 1967, there was a battle between Holmann & Moody, and Carroll Shelby To win Le Mans with the GT40 Mk IV. One of the things they didnt agree on was where the front rotor cooling air ducts went. H&M put them on the front Nose, Shelby put them on the hood because he felt too much air to the rotors would warp them after the Mulsanne Striaight...and he was right. Sometime during the night Mario Andretti came in to have his pads replace. He went out, and under the dunlop brige right after coming out of the pits, his brakes locked up, not only crashing himself but several other GT40's as well. The culprit, warped rotors due to excessive heating and cooling, Shelby went on to Win Le Mans by 5 laps over the second place car.
Now not to say you'll get your rotors as hot as them, but if the company felt they were necessary to keep the rotors operationing optimumly, I think they would of been added. So unless your doing Road Racing, or you really like going through pads, no need for brake ducting. What would be nice is to relieve the pressure under your fender. If you look on some high end sports cars, they have louvers over the fenders to relieve that pressure, and to produce downforce. Once again, your car is not a full on race car, so dont expect ot be able to go around corners 10mph faster, it just helps a little.
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