Factory exhaust manifolds were built for durability and packaging, not maximum flow. When your classic Chevy Camaro, Chevelle, or El Camino feels restricted at higher RPM or struggles to pull the way it should, the limitation often starts at the exhaust ports. Headers replace the restrictive factory design with tuned primary tubes that improve scavenging and let the engine breathe more freely.

Header installs rarely happen in isolation. Clearance around steering components, starter placement, and plug wire routing all need to be considered, especially on older chassis. Many restorations get headers alongside an updated exhaust system and fresh { "body": { "requireCookie": {"noCookieUrl":"https:\/\/www.classicmuscleparts.com\/cookie\/index\/noCookies\/","triggers":[".action.towishlist"],"isRedirectCmsPage":true} } }