[R1wheelieforfun]

I had same issue after Watkins Glen NY. I opted for the Racing Brake upgrade kit. I considered the 2 piece rotor kit as well but opted just for the caliper rebuild kit, pistons and high temp boots. It was a breeze to do on the workbench. I only have NACA ducting on my under-tray and no real ducts to the backing plates, was and still am running TI shims. Backing dust plates are folded in. Running PFC08's since the rebuild (several track events) and no issues with this setup. Had the opportunity to drive a fellow forum members track prepped 135i with full Stoptech kit and albeit his stops harder and shorter all day, the differences were not substantial. If you have the coin I'd go for the BBK but the rebuild has been good to me. Good luck!