Brake discs STOPTECH or GiroDisc

I have used StopTech a few times with no issues.

I have the StopTech brand and have been perfect for me this season

I went with the stoptech rotors and brake pads, the brake pads i got from tire rack, and the rotors from buybrakes.com since I have factory slotted rotors

I really like the StopTech rotors I had, but they have gone up in price significantly over the years.

Replaced with girodisc two piece rotors. They are great!

I swapped over from the oem Brembo pads and rotors to project mu pads and Stoptech rotors and it was a definitely worth the upgrade. I got the type PS pads they offer which has less dust than the oem pads, no noise and way better braking performance. Super easy to modulate and paired with 200tw tires your braking confidence goes through the roof and you can really late brake and trail brake easily.

I have Stop Tech slotted rotors on the front, still new in box for the rear. Same thing with stainless braided lines.

I have been running giro disc on my 991.1 GT3 with pagid rs29 pads. 15 days and only about 0.5mm wear. These are the only option for PCCB conversion.

I had similar issues with my girodsics when I got them. The bigger issue was the rotors were hitting the top of the caliper and SCREAMING even when I wasn’t braking. I got in contact with Girodisc and they sent me some more spacers to push the caliper away from the rotor a bit more.

My experience with my 2015 - non-PP - is that the pads are about the worst that I have ever experienced. Material transfer on the front rotors was a constant problem...this stopping from 75 mph at the bottom of a long highway ramp...the pulsating changed in sync with how hot the day was and how hard I was using the brakes...I do not drive this car hard. I replaced everything.