BBR Tuning Speed Carburetor Air Filter- Red INCREASED AIR FLOW: The BBR Tuning High Performance Air Filter drastically improves upon stock plastic box type filter found on stock engines. With more air flow your engine can reach it's full potential with no restrictions. You will see an increase in torque and top speed as well as a smoother running engine. BETTER PROTECTION: This filter removes 50% more dust and debris that would regularly bypass stock filter systems. Not only does this filter enhance performance it protects your engine and increases it's longevity. EASY INSTALLATION: Installation is a breeze, just unbolt your stock air filter and us the clamp to attach your filter to your carburetor. It's that simple! UNIVERSAL FIT: Designed to work with most standard 47mm carburetors such as the NT Carburetor and Speed Carburetor commonly used on 48cc, 60cc, 66cc and 80cc 2-stroke motorized bicycle engine kits. PACKAGE INCLUDES: 1x BBR Tuning High Performance 2-Stroke Motorized Bicycle Engine Speed and NT Carburetor Air Filter