I ran my '11 OEM pads until about 14K, at which point they were toast. Don't care much for the OEM; kind of a wimpy initial bite and take more effort under hard braking than I prefer. I've always used Galfer on my track bikes. I see lots of posts recommending EBC, but I've ridden Galfer and EBC HH's back-to-back on the same bike, and there's no comparison in my opinion. To each his own, just sayin'. On the C14 it's no exception - I luv 'em. Marked improvement over stock.
The Galfers I just got for the C14 were from Pashnit Moto; $79.90 for a full front set ($39.95 per caliper), and free shipping. Hard to beat.