Features: The EE Screen type spark arrestor makes maintenance very easy, by simply removing 2 bolts, the screen can be removed for replacement for servicing. Screen can be removed while riding on a closed course location, Unlike spark arrestor mufflers USFS Approved Spark Arrestor Screens Sold in a 2 pack Replacement Spark Arrestor End Cap Screens for end cap part numbers: 40-212 40-121940-102040-112040-402140-411540-501140-902040-9021