PC has one on there website but it does look pretty lean to me. Give that a shot first. Advgear RevB has been the best map for the 6R for about any exhaust, even TB. TB pro controller work well with RevA. Try a few, it won't hurt anything. But for sure get the PCV (- Home - Indysuperbikes) got the best price!
This is a pretty sweet exhaust... is there a O2 sensor (Bosh) on this exhaust? If you need help let me know... I'll help you.