Here is what Dirt Bike suggested to do for the 07 WR450. Sounds like many people are saying there is no need to cut the grey wire any longer. Throttle stop. No brainer yes do it. Cut the gray wire. What do you all think on the 07? Will it make any difference in performance? Remove inner baffle. How much louder is the bike without it and does it make any difference in power? Pull the airbox plugs. Yes airflow is good. Remove air injection system and plug holes with YPAD kit. Sounds like a good idea. Install new jets. 175 main DTR-4 needle in slot #4 50 pilot 45 leak jet 110 air jet Any comments on some of these mods?