• Easy to install
• Cuts oil leaks
• Cuts power losses
• Purges moisture and corrosive blow-by
• Patented Research-based design
• Long 2/5 Year Product Warranty
• Technical Support

The Bunn Crankcase Breather Kits manage crankcase air pressure and flow. The patented 'air induction' design flushes air through the crankcase, purges moisture from ethanol fuels, purges corrosive blow-by, & creates a vacuum. The Bunn Kit has undergone extensive research and works both in classic & modern engines, in either road or race applications (additional valves may be added with some race bikes). The kit is easy to fit, stops pressure swings, & cuts oil leaks and power losses. The Bunn Breather Kit may be installed as either an open system that vents to atmosphere or a closed system that re-cycles.