Hey guys, new to the board. I'm looking at getting a new bike and my first choice is a WR450f (or potentially a Honda crf450x). The more I read it seems as though the honda has more power "out-of-the-box", and everyone talks about how dogged down the WR is in stock form. I am fairly well read on the free mods topics, but I have never done any jetting or anything like that. The below questions, I have found, were never quite answered in the research I have done. So, kind souls out there please help me out. I have read various review articles on this class of bikes, and also thumperfaq for the mods. Here are my questions. 1. First, I currently have a stock 2002 Suzuki DRZ250. How does a STOCK WR450 compare for speed/acceleration? 2. For an initial mod is there a significant power difference if I JUST have the dealer replace the WR throttle stop with the YZ? Initially (I think) I just want to do the mods that don't involve changing jets/fuel mixture. So therefore that would require avoiding any airbox mods. 3. Can I remove/replace the factory exhaust baffle without doing the jets? The air/fuel going in would still be the same, but on the way out it would have less resistance. I'm not sure if this matters. 4. Grey wire: I know where it is, and how to do it. Somewhere I read to ride the bike for awhile first. Is this true? Can you do this mod and the throttle stop but NOT do jets/AIS kits? --if i buy a new WR450f and exchange the throttle stop and unhook the grey wire ONLY, will I have a significant improvement in performance or will I have other issues (like popping on decel). 4. Somewhere it was mentioned to get some kit and have the dealer do the install before picking up the bike. If you were going to have the dealer do stuff to your bike before picking it up, what would it be? I read the carb was hard to get to. Thanks again for your lasting patience with people new to this bike!