So, I've got exactly 10 track days on my 2010 GT3 and the steel rotors are starting to look pretty sad. Lots of cracks radiating from the venting holes. I figure they are good for another couple of weekend events, but that's about it.

I've been poking around on vendor web sites and this forum looking for replacements. Brembo's floating 2pc is what I've got on my BMW M3 and they've served me very well. I also see many Porsche folks like the GiroDisc. They appear to be extremely similar to the Brembo's I have. One thing is for sure - I will only buy the slotted rotors. No more cross drilled!

My frustration is that I can't seem to find the right size for the fronts. The OE rotor is Ø380mm, but all I'm finding is Ø350mm instead (that seems to be the correct size for the 997.1 GT3).

Can anyone help me out to source these rotors?

 

I believe Stop Tech has a direct replecement rotor.....try GMG

 

Girodisc has not released theirs yet. They said they are still in testing.

Brembo makes some replacements but are really expensive.

The stock rotors are fairly reasonable compared with the aftermarket stuff.

Suncoast has the stock rotors on their website.

 

Vivid racing has the slotted 380s for the 997.2 GT3 and GT3RS. Here is the link:

http://www.vividracing.com/catalog/b...-p-104848.html

 

The slotted Brembos are expensive, but claim to be more durable than the stock rotors and save about 3 pounds per corner. I replaced my front rotors with OEM stock mid Summer this year. I was thinking that when I have to replce the rears, I would upgrade all four corners to the Brembos.

 

they aint cheap but they are the $hit
380 mm .1 RS Pccb replacement
I run them all 4 corners with rs29 pads

 

Yep got them. They make a HUGE difference but are a little more of investment up front. With the McLaren hardware that is patented and for use with Brembo discs, they will give you the best braking.

 

RSS: GIRODISC – 380mm/350mm Slotted 2-Piece Floating Discs for 997.2 GT3/RS (Kit #758)

Girodisc Racing Brakes and Technology offers performance advantages in the areas of weight reduction, durability, and brake cooling.

(Girodisc vs. OE Discs)

Girodisc Slotted 2pc. Rotors
380mm 22.3 lbs (2 lbs. reduction of rotating weight)
350mm 18.3 lbs (2.45 lbs. reduction of rotating weight)

Porsche OE
380mm 24.3 lbs
350mm 20.75 lbs



Brake Kit is in Stock! Call or PM for pricing....

Happy New Year!

Mike/RSS

 

Just an FYI on the Brembo rotors, the McLaren hardware allows only the rotor to be the consumable item. Other knock off hardware designs will mean you have to replace the hat as well. The Brembo disk made in Italy will last 3 times longer then an OEM disk as well.