Its a stupid video but i decided to post it up anyway. I was riding around for a little with my seat off and when u hit the throttle pretty hard i nopticed that the riva filter was so restrictive that it collapsed when u hit the thorttle pretty hard. I never thought it would of been that restrictive... Thats what i tried to capture in the video but the chop prevented me from being able to hold my hand steady enough, but it sound spretty sweet !!!!!.

http://youtube.com/watch?v=R69GTzLcymk