Currently looking into upgrading the front brake setup on my GT86 Looking to get a bit more consistency on track then the stock callipers offer as braking is one thing I don't have 100% confidence in the cars ability  in when on track.   I have tried a few different pad combos now and don't seem to suffer from massive wear or fade but often end up with discoloured discs due the heat build up and then the performance and bite seems to drop off until new pads and discs go on.   Was looking at some of the popular K-sport or reyland options that I have seem people using. Or have people got any other suggestions. Cheap hacks like cooling ducts etc make a difference?

Basically weekend road GT86 with about 5 track days a year is my usage, current setup OEM discs and PFC Z pads. Previously been through EBC yellow and Ferodo DS2500.   Suggestions welcome