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18" Tires on 997 V1 GT3 with PCCB


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  • 2 weeks later...

The TRG race shop runs 18" tires on their race cars. You will need

to be more detailed on the 18" wheels you want to buy.

I would find the wheel you want and then ask the experts at


This is their business.


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  • 2 weeks later...

Thanks Paul.

I run 18" CCW and Fikse 5s wheels on my PCCB equipped 997 GT3. The only thing that will rub will be the bottom of the rear gen 2 brake ducts if you have them attached. But only on compression of the rear suspension under load.



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David, I was looking at the picture and was wondering who manufactures your rollbar and do you like it. Do you have race seats, if so what did you install? Thanks again!

The bar is a safety devices rear half cage , the seats are the nomex GT2 Porsche seats. The Safety Devices cage is distributed by Stable Energies in N.J. I got the removable harness bar for when we take the 3 on the road, undo four bolts, store bar and harnesses till needed again. There is a front half available also. It bolts to the rear shock towers and two plates that are welded to the round crossbrace under the rear seat area, not yo the floor of the tub. It gives you more room to move the seat back.

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  • 10 months later...


I recently got a 997TT with PCCB since my base Boxster was running out of juice on the track. What tires do you run on the 997? I used Sport Cups on the Boxster, but cant seem to get them in the 305 x35x18 if I want to run 18s.

Also, did you change out your rotors and pads? I use Pagids on the Boxster and I know they make a separate pad for PCCB. I heard from some other fellow DE-ers that it is better to change out rotors - but I still need to look into what rotors would fit (without having to change out the calipers).

Any guidance will be helpful. DE is coming up in March end, would love to take the 997TT if I can get it prepped for track.



Thanks Paul.

I run 18" CCW and Fikse 5s wheels on my PCCB equipped 997 GT3. The only thing that will rub will be the bottom of the rear gen 2 brake ducts if you have them attached. But only on compression of the rear suspension under load.


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  • 2 months later...


Sorry for the late response. I changed the CCB rotors to Alcon iron from England and run Pagid rs29 pads. This was before there were other rotors available. NNow I believe there is a greater choice of replacement rotors from other manufacturers. I am not sure that the GT# PCCB and the Turbo are interchangeable. Check with some of your local DE guys, they may be able to point you in the correct direction. DO NOT USE anything but the factory pads on the PCCB rotors. They will be damaged in short order by th wrong pads. hope this helps.


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