Yes install as soon as you get it. The quad is way lean from the factory. So the pcv will liven it up some, and be more responsive, And it's easy to change the map later. Also get the PC software loaded up while you wait on your new exhaust! And welcome to the club! One more thing what the 88gt all about?Just ordered a PCV, and had a question. My bike is stock right now. I plan on getting a full exhaust in 2 months. Would it be worth installing the PCV and running the stock map, or just wait till I get my exhaust?