For Genuine K&N Motorcycle Accessories our prices are Cheap! Think of it this way - If you had this filter, you would never need to buy another filter for your Aprilia motorcycle again. The Air Filter would give you HP Gains, and a far better induction note. This Air Filter is washable and reasusable. Use kn air filter cleaner products to bring life back to not only kn but any fulthy filter, for Best Performance!

Aprilia Air Filter Part AL-1098 Specifications
Product Style: Round Air Filter
Height: 4.75 in (121 mm)
Inside Diameter: 3.875 in (98 mm)
Outside Diameter: 5.063 in (129 mm)
Top Style: Rubber
Filter Material: Cotton Gauze
Flanges: None
Filter Re-Oiling Amount: 0.87 oz (26 ml)
Weight: 0.83 lb (0.38 kg)

AL-1001 Cross Reference
Aprilia           8102610
BMC FM20306

K&N AL-1098 fits the following motorcycles:
2004 Aprilia RST1000 Futura 998 - All
2004 Aprilia SL1000 Falco 998 - All
2003 Aprilia RST1000 Futura 998 - All
2003 Aprilia SL1000 Falco 998 - All
2002 Aprilia RST1000 Futura 998 - All
2002 Aprilia SL1000 Falco 998 - All
2001 Aprilia RST1000 Futura 998 - All
2001 Aprilia RSV Mille SP 998 - All
2001 Aprilia RSV Mille SP 998 - All
2001 Aprilia SL1000 Falco 998 - All
2000 Aprilia RSV Mille 998 - All
2000 Aprilia SL1000 Falco 998 - All
1999 Aprilia RSV Mille 998 - All
1998 Aprilia RSV Mille 998 - All