Cast Steel Matte Silver Ceramic Coated Exhaust Manifolds (68748) by Hedman Hedders®. Primary Tubing Diameter: 1.625". Color: Silver. Header Coating: Ceramic. These cast steel manifolds have a low profile. Their design offers excellent clearance, while the thick cast design is extremely durable and dramatically reduces radiant heat to keep under hood temperatures low. These cast steel manifolds have a low profile. Their design offers excellent clearance, while the thick cast design is extremely durable and dramatically reduces radiant heat to keep under hood temperatures low.
Hedman Hedders®, a prominent header manufacturer for racing and street header marketplaces, started as a one-man shop in 1954. At first the company's products were designed for straightline drag racers. Over time they became highly popular with elite racing engine builders and racers for their outstanding performance and proven reliability. Made to environmental requirements using the latest computer technology, Hedman Hedders headers are guaranteed to outlast any headers you've used before.
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