Some things are just better.

Simplicity...Horsepower...Perfection

Production units of the '08 & up Yamaha YZF-R6 Air Box with the adjustable velocity stacks, Kawasaki ZX-6R 636, Kawasaki ZX-6R 600, and the '08 & up GSX-R600 are now complete.

This is the latest addition to our line of extreme performance products from the Hyper FIT R&D team. The testing is complete. One of these systems won on its first night out on a customer's car to win the Linda's National Open, and now already has countless wins across the country. This system is so good, there are other micro sprint manufactures running it on their house car.


Key features include:

  • an element that can be changed in about 15 seconds
  • includes the under appreciated ram air design (This increases on track horse power more than people realize)
  • change elements without any chance of getting dirt into the engine
  • perfect element seal every-time with the airbox, oval air filter elements are very inconsistent in shape and size making a good seal virtually impossible allowing dirt to enter engine while racing.
  • o-ring seal between all applicable joints
  • all billet aluminum design
  • the air filter element placement is such that it can be removed and inserted with only a screw driver
  • smaller box design enables it to fit on any down tube chassis


To find out more information click on the below links

602-741 for the '08 and Up R6

602-741-2 for the '05-'06 Kawasaki ZX-6R 636

602-741-3 for the '07 and up Kawasaki ZX-6R

602-741-4 for the '08 and Up GSX-R600