Uni Multi-Stage Competition Air Filters are unsurpassed in airflow, dirt stopping and overall performance. And they produce more horsepower and more torque than any other air filter. Uni's revolutionary two stage air filter is the only filter that comes apart for maximum airflow and ultimate cleaning.

• Traps dirt and dust in 2 layers of foam.
• The large pore, pre-filter captures the bigger particles.
• The small pore, inner filter prevents any engine-wrecking grit from reaching the cylinder.
• Used by Kawasaki, Yamaha and Suzuki off-road teams.
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  - Yamaha

  1997 - WR250

  1996 - WR250

  1995 - WR250

  1994 - WR250

  1993 - WR250

  1993 - WR500

  1992 - WR250

  1992 - WR500

  1992 - YZ125

  1992 - YZ250

  1991 - WR250

  1991 - YZ125

  1991 - YZ250

  1990 - YZ125

  1990 - YZ250

  1989 - YZ125

  1989 - YZ250