My dad and I both got 06 WR450s and did the before and after ride. I was actualy happy with the "before" version of the bike! Well, its my first bike too... We rode it a couple times then did the oil change and added the GYT-R AIS kit and a GYT-R Muffler and then Holly Toledo! Its almost a little too much now! I'm gunna change the gearing a little now so 1st and 2nd aren't so gnarley and I can keep the front end down easier! The GYT-R kit is a must on that bike, as long as it isn't your first time riding!