I just recently put the FMF PC4 and Comp ECU on my 2012 WR450. The first time I rode it I loaded the aussie map on it and I was great for the tight woods I ride. Very smooth power. When I got home I removed the airbox snorkel. Last weekend I rode the same area and this time the bikes power was very jerky and not smooth at all. Could just the removal of the snorkle make this much of a difference? Does this sound like I need to adjust the FUEL or ING? There is a little popping on decel which to me would indicate its a little lean off idle. What tune are you guys running for the tight woods you ride? Thanks for the help.