Air filters for motorbikes (made by K&N and Fast by Ferracci - USA)

K&N / Fast by Ferracci's special material permits more air flow to the engine than stock filters, with no loss of filtration efficiency.
K&N / Fast by Ferracci air filters last practically forever.
Filters come ready to use.
Use the K&N / Fast by Ferracci air filter cleaning kit.

For higher efficiency, we recommend that K&N air filter kits be installed with the associated Dynojet carburettor kits or Dynojet Power Commander units or Eprom chips.
If used without the associated Dynojet carburettor kits or Dynojet Power Commander units or Eprom chips, K&N / Fast by Ferracci air filters will improve engine breathing but will not increase power output.
If K&N / Fast by Ferracci air filters are used on carburettor bikes without the associated Dynojet carburettor kits, jetting must be delayed reset by increasing main jet size by approximately 2 to 4 points to ensure correct engine operation. On injection bikes, the stock management system usually makes up for everything with no need of intervention.

Aprilia
BMW
Buell
Cagiva
Ducati
Gilera
Honda
Kawasaki
KTM
Moto Guzzi
MV Agusta
Piaggio
Suzuki
Triumph
Yamaha

K&N / Fast by Ferracci air filters cleaning kits