Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Oldsmobile V8 - Cutlass 1978-81 - Pair 11182AB Unit includes black powder-coated aluminum

Unit includes black powder-coated aluminum frame

G-Flow ventilation with Top vents

437 in Body at Thread

Special anti-cavitation slots

Hedman Street Headers - 1.75 in Primary - 3 in Collector - Black Paint - Oldsmobile V8 - Cutlass 1978-81 - Pair 11182AB Unit includes black powder-coated aluminumHedman Hedders Standard Uncoated Headers; 1 3 4" Tube Diameter; 3" Collector; Full Length Design Hedman's Standard duty, Uncoated Hedders are manufactured using 18 gauge, mandrel bent primary tubes (some models built using thicker 16 or 14 gauge tubing), and 1 4 flanges (some models use 3 8" flanges). Hedman Hedders has been manufacturing quality headers and exhaust components in the USA since 1954. Hedman Hedders Standard Uncoated Headers 1 3 4" Tube