I used mine for the first time at the petit race in my 4wd, was very noisy and tight at first but then it "bedded" in. Was awesome after that, smooth, fast and they have alot of torque. I would never go back to KO!
Can be found here:
http://www.m-k-racing.com/product_in...e1df6254fb6361
and:
http://www.m-k-racing.com/product_in...d=6722&<osCsid>
Great value for money!