Took 2 hours yesterday, not sure if rear install will do much, but it did fit.
picture was a bit blurry.
Duct had to be cut to fit in rear, that removed piece is placed on top in the picture.

in front i have adjustable fork arms so it also required some additional effort. but it seems to stick now.

 

Even a little bit of extra cooling is better then what was there before. I have GT3 Fronts and Turbo rears, no cutting required.

 

NorthVan, I was wondering where you got the Turbo rear ducts.
And are they much larger than GT3 rears?

 

I did the GT3 ducts on my 07 nd did not notice anything. I just put on the GT2 Motorsport ducts which are really big and did DE last weekend. Still hard to tell but in the summer heat I can get a mushy pedal at times and last weekend I did not.

 

Also curious - who sells turbo rear ones and how much do they cost?

ps. very interesting - when i read it from my blackberry it apparently posts replies but does not show them. funny.

 

i have them and they were like $30

north what are the GT2 Motorsport ducts?

pic?
part#?

 

I put on the GT3 ducts last month. Much bigger then the stock ones and will test them out in about a week!

 

I bought a complete package on eBay, and recorded the part numbers as I was installing them.

Left Rear 997 331 487 02
Right Rear 997 331 488 02
Left Front *997 341 483 92
Right Front*997 341 484 92

 

The GT2 kit is one to get

 

That is what I just put on my car. The GT3 $20 ducts did nothing for my brake cooling.

 

Were you getting temp readings between sessions? With the size difference they have to make some sort of improvement (i hope!).

 

i am mor concerned about my rear than about front, C2 rear calipers are quite small. but when you have to cut those gt3 lower sections to make them fit they do not see,m to protrude below plastic bottmo of a car much, so, not sure how well will rear ones work, but, i guess even a little bit of a duct is better than nothing.