Recommended Products

Complete kit for cleaning & re-oiling foam filters. Biodegradable.
Excellent oil for all foam filters.
Hard on grease and dirt, easy on your filter.
Unsurpassed in airflow, dirt stopping and overall performance.
Per Bike

Uni Foam Air Filter (Dirt)


Uni Dirt Bike Air Filters are unsurpassed in airflow, dirt stopping and overall performance.


  • Designed to fit in the factory air box exactly like original filter
  • The best selling replacement air filter for competition motorcycles
  • 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
  • Some models have a built-in "Grease Groove"
  • Re-usable, easy maintenance

See care and maintenance instructions for your Uni Foam Filter on the Happy-Trail WIKI.

Your Price per bike
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