After the knuckle busting process in my pursuit of access to the air box, I finally reached it. What a pain in the ass! My VFR800's air filter was certainly far easier to get to. Guys and gals, all I can say is Damn!...... Get that stock, snot-blocked, restricted, choking POS air filter out of your bike. I am surprised that any molecule of anything less than the density of Helium can get through that concrete wall?? So, I installed a new K & N air filter... Put her back together,,, started her up and Smooooooooooth! My idle is steady, no fluctuations in RPM's whatsoever - Unbelievable!!! No wonder the throttle response was so labored. Between the Leo Vince EVO II exhaust, the BAZZAZ torque correction, and the K & N, I believe this is going to be a much happier bike.