44mm Air Filter for GY6 150cc ATVs Go Karts Quad 4 Wheeler Dune Buggy Sandrail Roketa Taotao Jonway Sunl Coolster 44mm Air Filter. Top Quality Guaranteed. Great Price. Fast Shipping. Good Service. 44mm Air Filter for GY6 150cc ATVs, Go Karts; Inside diameter: 44mm Higher air flow than normal filter for maximum power; Race tested for performance and reliability Race filters increase air flow by up to 25% over standard filters ; High quality ensured