Found out Stoptech has just released a new racing pad. MSRP is $362 for the ST-60 caliper and $291 for the ST-40, pricing is supposed to be the same for all of the different compounds. So $650ish for both axles on your typical ST60/ST40 BBK for an E9X M3? That's about $100 less than Pagids and $150 less than PFCs.
So they are cheaper...but are they better? Honestly, I doubt that Stoptech (part of Centric) came up with some new ground breaking technology that will blow all other pads away. The question is likely who's pad compound is Stop Tech using?
Stoptech Racing Pads