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Twin Air's patented design, high quality materials and superior construction deliver unbeatable performance and protection - and make Twin Air Filters the hands-down choice of more World and National Champions than all other filters combined.

Twin Air's fused layers of open-pore foam and fine inner foam trap even the smallest particles-without restricting airflow!

Dual stage foam: 2 different pore sizes create more trapping area for even the smallest dust particles. Flame laminated foam: Both "Stages" are not glued but heat sealed to provide maximum air flow. Light color foam makes it easier to see where the filter oil has covered and where it has not.

• Designed to fit in the factory air box exactly like original filter
• The best selling replacement air filter for competition motorcycles and ATVs
• Unique two stage design allows for easy and complete cleaning
• Dual layer of foam, can be serviced separately
• Thin Ultra Seal base is virtually impossible to tear and has a built-in "Grease Groove"

• Unique triple stage foam filter designed for the most extreme conditions
• Increased protection against silt, water, and sand
• Allows for extended filter service intervals
• Can be cleaned, re-oiled, and re-used like a 2-stage filter
• Neoprene base gives superior sealing to airbox
• Includes resealable bag for easy oiling and storage

• Increased air flow over the stock air filter
• Designed to increase horsepower and throttle response
• Easily fits inside the factory air box
• Larger surface area over foam filters which offers longer service intervals in dusty conditions
• Four layers of premium cotton gauze provides outstanding filtration
• Washable & re-usable, never wears out
• One filter will last the lifetime of your bike