Ive got a situation here. I have a 2007 Outlander 800 and a 2008 Renegade 500. I just bought a 2009 Renegade 800r engine. My questions are, will the 800r engine work in my 800 or would it work better in the slightly newer renegade? Id like to put the more powerful engine in my mud quad if possible and my old 800 engine in my trail bike. Also is it possible to reflash the stock 500 ECU to adapt it for the 800? Im just not sure if there are any differences between the years and the engines so any help would be appreciated.