Just had my local dealership install a yoshi can, arrow exhaust, pcv, K&N and dyno. The bike runs great and sounds great but when I cold start the bike the idle bounces between 500ish and maybe 1100 rpm. After warming up it’s pretty normal. During riding it has no issuses that I’m aware of and the tune has really helped the gsxs snatchy throttle. I’ve never done a full exhaust and tune on any other bike but shouldn’t that pcv address the idle also? The dealer didn’t say a whole lot about the start up idle fluctuations.