Headers - Tri-Y one-piece Header Style - Square Cylinder Head Port Shape - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Doug's Headers D303Y

Headers, Tri-Y, Steel, Ceramic Coated, Chevy, GMC, Big Block, Pair

Part Number: DOU-D303Y

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Headers, Tri-Y, Steel, Ceramic Coated, Chevy, 348, 409, Pair

Part Number: DOU-D309Y

4.7 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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Headers, Tri-Y, Stainless Steel, Natural, Chevy, 348, 409, Pair

Part Number: DOU-D309Y-SS

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Headers, Tri-Y, Steel, Black Painted, Chevy, GMC, 396-454, Pair

Part Number: DOU-D303Y-B

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

Headers, Tri-Y, Steel, Black Painted, Chevy, 348, 409, Pair

Part Number: DOU-D309Y-B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today