Marlayne,
The Freak allows the use of your chrome filter covers over the K&N filters. After re-jetting the freak kit gave a good performance boost. I use 145 mains, 45 pilots and 1 needle shim with Triumph short offroads. Dynamometer testing indicated 64Bhp and 49Ftlbs of torque.From a distance it looks like a stock set up due to the chrome covers.