F8 Brake Noise

Really appreciate this follow up! I have had the same issue on my 488 gtb and have posted exhaustively about it. Like you my dealer was worthless. Found an indie who sanded the pads down and got rid of the chirp/squeal for about 20 miles, and now it's back, albeit less than before. I've seen so many other solutions none of which I want to try or seem to uniformly work. May I ask how much it cost to move to these rotors and pads? While I hate the sound, the curves of cost and annoyance need to intersect at the right point for me to do this haha. Maybe it's something I consider down the line when it's time to change the pads. Thanks!

 

Girodisc rotors, GP10 street pads, brake fluid change, labor and tax was a little under $7k. I probably spent over $2k on labor trying to fix the noise before doing the swap. In the end, and based on my experience, the only solution is to get rotors that have minimal runout. It doesn't matter the brand, but the fact that Girodisc actually tests runout on each rotor and details it before leaving the factory gave me some comfort that this solution would work (and it did).

 

Materials may also make a difference - you say that Surface Transforms and OEM Brembo have the same runout tolerance, and in spite of this my ST / Pagid setup does not squeak like the OEM Brembo did (I have now about 10,000 km with the ST; obvioiusly the pads have been changed several times).

 

ST is way better than stock and I wish I could have moved forward in an ST install. My issue in trying this setup was that ST quoted me a potential runout range where the high end of that range could be similar to what I had on my OEM rotors. This is not to say the actual runout for ST rotors would end up being on the high side of their tolerance, but instead that there was risk that they would send rotors on the higher end (which would mean no solution to the problem). The closest authorized ST installer was about a two hour drive away so logistically it was also a challenge for me to work with them. In the end, I didn't want to take a $17k+ risk to change entire brake set up and not have the solution. For anyone who is considering changing their car's brake set up, my best advice is to work with someone who will measure runout (for any rotor brand your order) before final install and will reject any rotor that has runout on the higher end of the tolerance range.