Spectre Emission Control
- Spectre Performance®PCV Breather Cap (4284)PCV Breather Cap by Spectre Performance®. Spectre’s PCV Valve Breathers feature a 3/4 inch PCV valve integrated into the assembly. The breather replaces the PCV valves and provides breather looks while allowing for emissions systems...Triple chrome-plated steelFor vehicles with emission systems requiring a 3/4 In. PCV valve$12.99