Availability
2003 Headers
Showing In Stock Items. Show All 86 Items.
Headers, Long Tube One-Piece, 1 5/8 in. Primaries, Round Port, 3 in. Collectors, 2 1/2 in. Reducers, Steel, Natural, Cadillac, Chevrolet, GMC, Pair
Part Number: HED-69720
Estimated Ship Date: Today
Estimated Ship Date: Today
Headers, Racingheart, Long Tube, 2 1/8 in. Primary, 3 1/2 in. Collector, Stainless Steel, Natural, Ford, Mustang, Big Block Chevy Swap, Pair
Part Number: HOK-6234-2HKR
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Headers, Racingheart, Long Tube, 2 1/8 in. Primary, 3 1/2 in. Collector, Steel, Painted, Ford, Mustang, Big Block Chevy Swap, Pair
Part Number: HOK-6234HKR
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
This product may not be eligible for select promotional offers
Headers, Full-Length, Steel, Silver Ceramic Coated, Cadillac, Chevrolet, GMC, Pair
Part Number: HED-69726
Estimated Ship Date: Jun 18, 2026 if ordered today
Estimated Ship Date: Jun 18, 2026 if ordered today
Headers, Full-Length, Steel, Black Ceramic Coated, Cadillac, Chevrolet, GMC, Pair
Part Number: HED-69723
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
1 7/8" x 3" Stainless Steel Longtube Header. 4V - 4.6 (1996 - 2004) Header w/ 1pr 24" 02 Extension Harness.
Part Number: KOK-11222400
Estimated Ship Date: May 29, 2026 if ordered today
Estimated Ship Date: May 29, 2026 if ordered today
Headers, Specialty and Engine Swap, Long Tube, Steel, Temporary Paint, Chevy, GMC, Small Block, Pair
Part Number: HED-69030
Estimated Ship Date: Today
Estimated Ship Date: Today
Headers, Long Tube, Stainless Steel, Natural, 1.75 in. Tube, 3.00 in. Collector, Ford, Modular V8, Pair
Part Number: KOK-11212200
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
1 5/8" x 2 1/2" Stainless Steel Longtube Header. 2V - 5.4 (1999 - 2004) Header.
Part Number: KOK-13312000
Not Yet Reviewed
Estimated Ship Date: May 29, 2026 if ordered today
Estimated Ship Date: May 29, 2026 if ordered today
2001-04 C5 Corvette 1 7/8" headers and 3" center section with x pipe and high flow converters. Bolt on install
Part Number: STW-C5LS103CATBT
Not Yet Reviewed
Estimated Ship Date: Jun 4, 2026 if ordered today
Estimated Ship Date: Jun 4, 2026 if ordered today
This product may not be eligible for select promotional offers
Headers, Long Tube, Stainless Steel, Natural, 1.625 in. Tube, 2.50 in. Collector, Ford, Modular V8, Pair
Part Number: KOK-11212000
Not Yet Reviewed
Estimated Ship Date: Jun 1, 2026 if ordered today
Estimated Ship Date: Jun 1, 2026 if ordered today
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