I would recommend making the switch to slotted discs.

 

Holy cow man, those things are bigger then the wheels on my car!.
Nice work!

 

Are there already slotted discs for the 997 MK2 GT3?

 

Thanks for the insight gents.

 

I would like to ask the person from Champion Motorsports to expand on why to switch to slotted discs? Any one else have input???? I track my car almost 100% and use Pagid RS29 Yellow pads and go thru discs ( I have been using drilled OEM discs ) fairly frequently. I still am trying to understand how to tell when slotted discs need to be replaced? Sorry if this is a simple question, but I appreciate the help/education.

 

The reason for slotted discs is their longevity compared to the drilled rotors that crack after a few track days. Slotted discs have to have their thickness measured to determine whether they need to be replaced. Ratio is 2 or 3 drilled discs to one slotted.

 

Thanks Larry. Any other input? Cost, performance, etc. It would seem that everyone would switch...anyone else have thoughts?

 

I am switching mine to the Giro Slotted. I was going through a set of OEM rotors in 3 days, with hardly any wear to the surface. I have friends (including PJS) that wouldn't have any problems with their slotted rotors.

 

No need to switch if you are not tracking the car.

 

ATE Cayenne rotors [350mm, slotted] fit your car and only cost $130 per rotor from TireRack. That's right - Cayenne rotors. And that's also right: $130 per.

There is a long thread on Rennlist about these rotors, mostly used by the track guys with great success. But I see no reason not to use them on a DD.

[edit: I have a set of these to put on, but am still trying to kill my Deman rotors -> which have lasted over a year's worth of track events (10)]

-td

 

Great post, will look into it. Thanks