Better breathers for your engine.
Moroso's weld-in filtered breather kits contain two 1 3/8 in. O.D. aluminum breather tubes with internal baffling, two half-hooded filtered breathers, and two stainless steel hose clamps. Although they're specifically designed to weld onto Moroso aluminum valve covers, they can be adapted to fit other brands of aluminum covers as well.

Valve Cover Breathers, Weld-In/Clamp-On, Round, Steel/Rubber, Chrome/Black, Moroso Logo, Pair