The other night I was rattling around on the web and found someplace advertising update kits for K-H 4 piston. It included new SBP rotors and modern 4 piston calipers. It of course mounted on the original K-H specific spindle. Now trying to find it again, I can only find SSBC has the calipers, but no rotors. Does anyone know what the heck I'm talking about or did I imagine it? It was late.