I went with the Tusk 320 mm Rotor Kit (P/N: 1372220008) and their braided Front Brake Line (P/N: 1201540016) as well. I did some shopping and spent $149.99 and $44.99 respectively. I kept the stock Brake Caliper. The results have been great. OTOH if I had to do it over again I'd have used Eagle Mikes 320mm Rotor and his SV650 Caliper conversion. IMHO I don't think putting an SV650 Brake Caliper on the stock rotor, even if this is possible, would do much for improving the brakes. Going from 250 mm to 320 mm on my 2007 is what makes the biggest improvement.