Re: Stock air filter vs BMC race air filter
I have wanted to reply to this post for sometime but am using my office computer and couldn't logon using my old info. Anyway, here is the 411, I have an '02 954 R/B, full Hindle, Flapper mod, custom map done by L&L motorsports. My bike made a best of 140.5 with the BMC and 140.9 with the stock filter. These runs were done 15 minutes apart(time to change the filter). That only tells half the story, with the stock filter we had a 3 horse gain from idle to redline with no losses anywhere. By the way, I gained around 4-5 horses with the custom map. I was disappointed when I only made 135.7 with a full system and no map. I was at 132.5 stock. The track I run at is around 4500 feet so a sea level run would show slightly more even though the computer(dyno) corrects for altitude. If I find a scanner I'll upload the dyno chart.