girodisc martin

First let me say I’m glad no one was hurt when this rotor cracked and you’re still racing in good health! The time frame for this incident puts it back when we had all of our Porsche parts outsourced, meaning manufacture, assembly, fulfillment, sales and support. It was a necessity at the time because we moved our business several states away and couldn’t handle everything on our plate. That company specialized (and still does) in Porsche racing parts. They did a good job for us for 3-4 years but we realized it needed to come back in house. We ended that relationship about three years ago. Since then, all Porsche products engineering, manufacturing, sales and support has been direct with us. I say this because the parts we sell today are very different, as is the customer support.

We found the 997 GT3 and Turbo had a dramatic shift in braking towards the rear compared to earlier cars resulting in far more heat generation in the rear. We have since twice re-designed the rear rotor casting for all the 350mm rear applications, the latest will be released next month. We now control all aspects of the discs including design, tooling, metallurgy, fixturing and machining. We are constantly learning and evolving the product and processes, keeping our commitment to the customer to provide the best products at reasonable prices while manufacturing everything in house using strictly US sourced materials.

If you are willing to still consider us in the future, please contact our sales department and speak with us about your goals. We take our commitment to you seriously. If you still have the vehicle these discs were fitted to, contact us for our updated parts, I think you’ll have a very different experience.

Kind Regards,

Martin Meade
Girodisc

RacingBrake

Just to clarify you were talking about Brembo two piece rotor upgrade for GT3 with red calipers that stock rotors are 380mm (front and rear).

But I think Joe's Boxster Spyder is 350x34mm no?

RacingBrake

We have received inquiry from 991 GT3 owners expressing the same experience as yours, and asking for the replacement rings from racingbrake.com

I found this thread upon searching "Brembo Type 3" under 991 GT3 forum, so I was confused - wasn't your Boxster Spyder stock come with 350x34mm rotor, while you know GT3 is 380x34mm, so have you upgraded to 380mm rotor kit, or remain as stock sizes at 350mm?

Thank you for clarification.

orthojoe

You are mixing 2 cars.
My boxster spyder had 350mm Brembo type3 rotors
My 991 GT3 uses the AP racing 380mm rotors and hats.
2 different cars. 2 different brake rotor systems

dntlvet

Wow that allows clarification.