Billet Specialties breathers are precision machined in the USA from 6061-T6 billet aluminum and feature a unique 2 pc. design with a positive O-ring seal.

Breathers are easily maintained with a washable filter element, while the PCV breather features a common replaceable PCV valve with a barbed fitting for 3/8in hose. Available for 1in or 1-1/4in diameter valve cover holes.

Valve covers should be run with one breather and one PCV valve or PCV breather for proper air circulation.