alexb76

I was wondering if anyone's using either the GT3 or GT2 brake ducts?

GT3:


GT2:


GT3 seems a lot smaller, but should be larger/better than stock and it's so cheap it's almost a no-brainer... but not sure if it provides that much better cooling.

GT2 is a 996 item and needs some modifications to wheel well to fit. Any 997 experience with those?

What about rear brake ducts? Do these fit on a 997 non-GT3 cars?

mdrums

Gt3 ducts made zero difference..waste of $30. Gt2 ducts make a great difference....pricey but worth it. They fit right on my Porsche Motorsport GT3 lower control arms. These arms lookmlike regual 997 arms and should fit on those too.

alexb76

What about the GT3 rear ducts?

mdrums

The 997.2S has good rear ducts so I have not tried those.

utkinpol

do they really go on LCAs? Not on fork arms?

mdrums

Thanks for the correction...that is what I ment

whayes

Do the GT2 ducts clip right in or do you need to modify anything?

utkinpol

i actually hoped gt2 arms go in differently - i have adjustable fork arms and they are round, not square like stock ones so mounting of gt3 ducts was problematic... I had to screw `em permanently to other plastic panels.
I am also not sure what good those gt3 ducts do really but when i tried air blower they seem to deflect at least some air into brakes area... i guess i just need to learn how to brake less. I just can`t justify spending $500 on those 2 GT2 plastic duct pieces, it is an overkill.

alexb76

Really? I was reading that 997.1 GT3 rear ducts were not good enough, hence an upgrade in .2 GT3/GT3RS, however, I am not sure if non-GT3 .2 rears were upgraded.

Doc GTO

I have the GT3 front ducts and I've had zero brake issue. They are quite larger then the stock C2 ducts. I haven't been on Sebring with this car yet though but I do have larger brakes then the stock C2 and C2S. My car came optioned with the PCCBs.