Dynatech Pro/Stock & Dragster Down” Headers”

Part# 25-500-904701

Shown with 83-712402C Collector (Collector not included.) Big Block Chevy, 2-1/4- 2-3/8″ Step Primary, 28″ Equal length design CNC laser machined flanges feature raised port location for increased power Unique port gussets eliminate cracking caused by muffler applications and tire shake Jig located u-tabs for hassle free, bolt-on collectors High temperature, silver ceramic coated inside and out”


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