What type of riding you do?? What skill level? You will see stronger pull through out the power range, really helps over rev and very good throttle response. Worth 180.00 bucks just depends on you and your skill level. I ride more slow tight trails and can't see spending 180.00 bucks when I can just clean up my jetting for good throttle response and power for my type of riding. If you can ride at the pro level on a motocross track I think you would love the benfit of the rad valve.
