Brake pads Carbotech or STOPTECH

I have stoptech "performance brake pads" on my front and rear. Feels like OEM but more dusty

I've been to 20 track events to this day I'm still running OEM calipers. Just carbotech pads. You don't need a big brake kit at all. The oem cracks because of improper cooldown. I learned that after a session to take my cooldown lap seriously and ever since then i stopped cracking AutoZone rotors

I ran stock rotors for a long time with carbotech xp10/8, front brake ducts, stainless lines, and Motul 660. The XP10/8 + ducts was sufficient for 20min session the tracks I drive.

It's a solid pedal feel.

To me it looks like brake pad material on your rotors due to your street pads melting. Slap a new set a cheap pads on there from Autozone or something and drive it for a week or two that material should come off. As long as you don’t have vibration while braking they should still be good. Just make sure to use track pads next time. I personally run StopTech 309 pads because they’re good on track and street

I got Stoptech Sport pads that I've used on track and street for many years.

I'm using carbotech xp8 on my 3800 pound sedan. They've survived 6 days at the track plus occasional driving around town for a year.

I run StopTech Sport pads on my E92 M3 and they hold up very well for a dual duty pad. I prefer them over the other options listed.

I keep XP8’s on my track/weekend car full time. For me, the noise is annoying when I’m driving through town or in a parking lot because people look at me like my car is broken.

Stop tech pads have a lot of brake dust. I had them and hated them. I went with the power stop pads low dust on all four and powerstop drill and slotted rotors up front. I already had stop tech slotted in the rear.