

JESSE in NM
Installed on a 2010 CRF250R, used the short velocity stack (for improved mid to top). I noticed a slight increace in torque, improved throttle response and slightly more top end. Air4orce definitely made a noticeble improvement over stock.
Read All Reviews
Zachery in CA
Pretty simple installation with no trimming required on my patucular bike. Not a big power increase but it got rid of the huge hit in the mid range and gave me a little more bottom so the bike is much more rideable now. Price could be a little lower though.
Read All Reviews