Overview Reviews Product Description 28140 - Hedman Street Headers 67-79 Firebird 64-72 GTO Pontiac Engine Primary Tube Outside Diameter (in.): 1 5/8 - 2 in. Flange Style: Standard Collector Attachment: Ball and socket flange Collector Diameter: 3.000 in. Collector Reducers Included: Yes Collector Reducer Exit Diameter: 2.500 in. Cylinder Head Port Shape: D-port Tuned: No Primary Tube Gauge: 18-gauge Flange Thickness (in.): 0.250 in. *** FEW SCRATCHES IN TEMPORARY COATING AS SEEN. Product Videos Custom Field ISSUES FEW SCRATCHES IN TEMPORARY COATING AS SEEN. Product Reviews Write a Review Write a Review × Hedman Headers 28140 - Hedman Street Headers 67-79 Firebird 64-72 GTO Pontiac Engine Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
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