UNI Multi Stage Competition Suzuki/Yamaha Air Filter Part# NU-3230ST - “UItra Seal” with built-in grease groove for a perfect seal.
RM125 ('04-'07) / RM250 ('03-'07) / RMZ450 ('05-'06)
YZ125/250 ('93-'09) YZ250F ('01-'09) / YZ400F/426F/450F ('98-'09)
Two stage design - leave the outer layer dry for longer highflowing service; or oil it for unusually wet conditions.
Clean and re-oil as often as you like.
Race proven by today’s top racers and tuners.
The best selling replacement air filter for competition motorcycles.
Extremely low-resistance, high air flow design.
Fit perfectly in stock airbox.
Easy to clean with grease-cutting dishwashing detergent.
Superior dirt stopping ability compared to paper and gauze filters.