Ive been reading through the stickies as well as doing some google searching and not really found the answers Im looking for. 1. On the "free mods" for 05+, are they relevent for all the wr450's up till 2012? 2. Do the free mods alone bring the power any where near the power of a carbed yz450f lets say 06-09? and finally... 3. How are the 2012's and newer as far as being really limited in power compared to the FI Yz450f's? Same as in the carb bikes? Would some simple stuff like full exhaust and a programmer make it any where near a yz450's stock power? thanks in advance guys. Im just looking around at different bikes and trying to narrow down what I want. Im not worried about which would work better in what situation at the moment but rather can the wr be fairly easily and cheaply made as powerful as the yz's.