Hedman Street Headers - 83-88 Thunderbird / 79-85 Mustang 01256 Its 103mm throttle body opening

Its 103mm throttle body opening can be port matched to 105mm

75" triple disc clutch has been developed for vehicles requiring a holding capacity of 500 to 1100 ft/lbs of torque at the crank

high-output flow tubes to provide more horsepower

Virtually eliminates heat soak

4 x 2-1/2 in Primary Tubes

Hedman Street Headers - 83-88 Thunderbird / 79-85 Mustang 01256 Its 103mm throttle body openingHedman Hedders Standard Uncoated Headers; 1 1 2" Tube Diameter; 2 1 2" Collector; Mid 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 1 2"