jcrcr254 no I haven't tried that but my wife's bike has the exact same mods as mine but has the stock tires and hers did around the same as mine but I can't remember if her filter was just cleaned or not. I know that mine was. I'm trying the K&N with outerwears now and am wondering how it will do. I feel that it has better top end pull than the UNI does but won't know till I GPS it. I am thinking about going to a smaller rear sprocket and seeing how much better the top end will be cause I have great bottom and mid range with the stock sprocket.