Quote Originally Posted by ALPS View Post
very fair statement and i agree! you don't require a BBK for mountain runs or daily driving, and even if you do get a BBK, you need to make sure you have the better pads. But if you're already considering it, knowing cost involved. Why not? i'd go for a brake upgrade if i can justify my funds to go to it anyday..
Agreed, if it is a "want", then the decision is easy. Just go for it if the OP can afford it!

If it was a "need" where the OP was trying to correct a certain deficiency with his AP1, then it gets a little complicated. Since the OP stated he wanted to improve braking performance, it will be important that we identify what braking issues the OP is experiencing now. Otherwise he might end up in an ugly situation where thousands of dollars has been spent but the braking performance has not improved as he expected.