K&N High-Flow Chrome Bonnet Air Cleaner Assembly For Mikuni 40-45mm Carburetor

Features:

• High-Flow Custom Air Filter Assemblies are perfect for vintage American V-Twin motorcycles or custom builds
• Designed to fit Harley-Davidson motorcycles
• K&N custom air cleaners can increase horsepower with proper carburetor calibration
• Mikuni 40-45mm 6"
• 5-1/2" OD, 5-1/2" T, 1-7/8" H, 5/8" L flange
• Uses 2-3/4" mounting flange
• Replacement filter 712-113

Note: May require carburetor calibration. Not legal for use in California, or other states with similar emission control regulations.