I have searched about this topic and have read very good responses about over sized tanks. I am leaning towards buying the 3.6 gallon Clarke tank over the 3.1 gallon IMS. Both are not perfect but I need better range over the stock 2 gallon tank. I have a 09 WR450 and would like to hear from those who have done this conversion with an 07 -09. What issues did you have and do you have any pics you would like to share?