i am no brake engineer but for everyday spirited driving and a few road course events i think that the 13" kit is more than enough.
if i were a serious track event racer i would get the willwood kit. the willwood is built more for the track being better components, lighter, etc. but it is a lot more expensive too.
if you do get the baer kit pass up on the cross drilling. the engineers will tell you that they are more for looks than anything else and might even break down pretty quick.
i will be getting the 13" baer kit as soon as i find out if the GB is going to come through.
