Doug's Headers - D381
Headers - SideMount - 2.125 in Primary - 4 in Collector - Steel - Ceramic - Big Block Chevy - Chevy Corvette 1963-82 - Pair
Doug's Sidemount Header 63-82 Corvette 396-454 BBC 2 1/8" Primary 4" Collector Silver Ceramic Coated D381
Collector Diameter: 4
Color: Silver
EmissionFullDES: 2 - This product is Legal for use on Pre-Pollution Controlled Vehicles. It is legal for use on all vehicles produced Before Emissions Control Regulations were imposed. These are considered Uncontrolled Vehicles and are defined as follows; 1965 and Older US Manufactured California Certified Vehicles, 1967 and Older US Manufactured Federally Certified Vehicles, 1967 and Older Foreign Manufactured Vehicles
EmissionFullDES: 3 - This Product is LEGAL for Closed Course Competition use or Pre-Emissions Controlled Vehicles ONLY. It is Not Legal for use on any Emissions Controlled Vehicle for Street or Off Highway use.
Finish: Metallic Ceramic Coated
Flange Thickness: 0.375
Gasket Or Seal Included: Yes
Gaskets Included: Yes
Header Finish: Silver ceramic coated
Header Material: Steel
Header Style: Sidemount
Material: Steel
Mounting Hardware Included: Yes
Oxygen Sensor Port: No
Primary Tube Outside Diameter: 2.125
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