I'm running Carbotech AX6 pads and they are great. They bite hard and progressively bite harder. The downside is that they generate a decent amount of brake dust. The upside is that they don't make a lot of noise.
https://www.z1motorsports.com/brakes...nt-p-5352.html
Carbotech AX6
The AX6™ is specifically engineered for Autocross applications. A high torque brake compound delivering reliable and consistent performance over a very wide operating temperature range of 50°F to 1000°F + (10°C to 537°C+). The advanced compound matrix provides an excellent initial bite, high coefficient of friction at lower temperatures along with very progressive brake modulation and release characteristics. Many drivers use the AX6™ for street driving as well, even though Carbotech™ doesn't recommend street driving with AX6™ due to possible elevated levels of dust and noise. AX6™ is NOT recommended as a race compound in most applications.