u/BillLivingstone

I’ve never had any issues with my crf300 Rally. Last week I switched to a moto X full exhaust and it started to stall out probably from being too lean. I got my ecu reflashed from 550 Performance and now the bike runs smooth but it had a very loud sound to the valves of something. Is this ok or should I be checking the clearances etc? This is how loud it sounds over my baffle out moto X exhaust!