Put my "DeCal Works" pre-printed background on last night. DeCal installation on the WR450 is a real pain. It took about 15 min on the left side , 5 min on the front YZ number plate and 2 hours on the right side number plate. They look great, but I will advise everyone to send your plates to "DeCal Works" and let them put them on. I had to cut the right side DeCal in three places to get the wrinkles out. It looks OK but you can still see the seem up close. It is not "DeCal Works" fault, but the d?&*m plate is so curved I'll take pictures tonight and post tomorrow. BTW, the directions tell YZ & WR owners to take your time.