Breather Sock

The Allstar Performance Breather Sock is a specialized engine ventilation component designed to manage crankcase pressure in high-performance and racing applications. This round breather wrap fits a 3-inch diameter opening and stands 2.5 inches tall, serving as both a functional air filter and a professional finishing touch to any engine bay. Whether you're building a street rod, race engine, or custom vehicle, the Breather Sock prevents dirt and contaminants from entering the crankcase while allowing essential gases to escape safely.

Constructed from premium cotton material, this breather sock offers superior filtration while maintaining low restriction to airflow—critical for engines where crankcase ventilation efficiency directly impacts performance and longevity. The cotton construction is durable, washable, and resistant to oil saturation, making it ideal for extended use without frequent replacement. The classic black finish with embroidered Allstar logo adds a professional aesthetic while the compact 4 x 1.05 x 4.55-inch profile fits seamlessly into tight engine compartments without compromising underhood clearance.

Engine builders, hot rod enthusiasts, and racing teams benefit from the Breather Sock's proven protection against ingestion of airborne debris during operation. The 3-inch diameter design accommodates standard breather openings on most V8 and specialty engines, making it a versatile choice for custom applications. Installation is straightforward—simply slip the sock over the existing breather tube opening and secure as needed. For anyone serious about engine cleanliness and presentation, this Allstar Performance component delivers both function and finish.