[Cal Cruzer]

If you are road racing where you are on your brakes a lot it will help and in real panic stops it may help some, anywhere it really generates a lot of heat. They also look cool. If I were going to do it I would lean more towards a slotted rotor then a fully drilled. They accomplish the same missiong (venting gasses that build up between the rotor and pad) but you do not sacrifice the full integrity of the rotor. Full race cars generate incredible temps that drilling helps cool, but then on a race car they will probably change out the rotors quite often. There is also the matter of reducing unsprung weight on race cars. Every little bit helps in the handling dept which isn't that big of an issue in a street car

In everyday use you probably won't notice a whole lot. IMHO you will FEEL a bigger difference from an upgraded brake pad. Unfortunately I have no first hand experience with what to uses as an upgraded pad for the PT.

But they do look cool!

(edit) Okay sorry for the lecture. I just re-read your question and the answer answers are "no", "maybe" and "not to me". I just realized who posted this and I think that you are a mechanic aren't you? Probably don't need a lecture on brake theory.[:I][^]