Hello from the Adirondack Park in New York State. I purchased my 2011 Raven in spring of 2021 with 6000 miles. The bike came with cobra swept pipes and a power commander five already installed. When the weather was cool everything was fine but as the summer warmed up and started running rough and doing a lot of popping on deceleration. I recently had Ivan reflash the ECU and the difference it made was incredible. There is absolutely no popping throttle response is nice and Chris and my mileage went from 30 mpg to 47 mpg. Looking forward to an enjoyable summer of riding.