Availability
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $881.95
Rebate Expires: 9/30/2025
Headers, Shorty, Steel, Ceramic Coated, Chevy, 265-350, V8, Pair
Part Number: DOU-D356
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $881.95
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $923.30
Rebate Expires: 9/30/2025
Headers, Tri-Y, Steel, Silver Ceramic Coated, 1 3/4 - 2 in. Primary Tube O.D., 3.00 in. Collector Diameter, SAP Port, Ford, Mercury, 351W, Pair
Part Number: DOU-D669Y-1
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $923.30
Rebate Expires: 9/30/2025
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $442.65
Rebate Expires: 9/30/2025
Headers, Shorty, Steel, Silver Ceramic Coated, Oval Port, Chevrolet, Small Block, Pair
Part Number: DOU-D327
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $442.65
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $951.95
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Silver Ceramic Coated, 1.75 in. Primary Tube, 3 in. Collector, Buick, 350, Pair
Part Number: DOU-D200
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $951.95
Rebate Expires: 9/30/2025
Estimated Ship Date: Oct 20, 2025 if ordered today
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Headers, Long Tube, Steel, Silver Ceramic Coated, Dodge, Plymouth, Small Block, Pair
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Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $675.55
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Headers, Tri-Y, Steel, Painted, Ford, Mercury, 221, 260, 289, Pair
Part Number: DOU-D662Y-B
Estimated Ship Date: Oct 17, 2025 if ordered today
Estimated Ship Date: Oct 17, 2025 if ordered today
Headers, Tri-Y, Steel, Painted, 2.5 in. Collector, SAP Port, Ford, Mercury, 260, 289, Pair
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Estimated Ship Date: Oct 16, 2025 if ordered today
Estimated Ship Date: Oct 16, 2025 if ordered today
Headers, Long Tube, Steel, High Temperature Black Paint, Pontiac, Pair
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Estimated Ship Date: Oct 20, 2025 if ordered today
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $968.40
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Silver Ceramic Coated, Chevy, Pontiac, Pair
Part Number: DOU-D3341
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Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $968.40
Rebate Expires: 9/30/2025
Estimated Ship Date: Oct 20, 2025 if ordered today
Headers, Long Tube, Steel, Black Painted, Chevy, Chevy Small Block, Pair
Part Number: DOU-D308-B
Estimated Ship Date: Oct 20, 2025 if ordered today
Estimated Ship Date: Oct 20, 2025 if ordered today
Headers, Shorty, Steel, Black Painted, Chevy, Pontiac, Chevy Big Block, Pair
Part Number: DOU-D306-B
Estimated Ship Date: Oct 17, 2025 if ordered today
Estimated Ship Date: Oct 17, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $874.50
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Silver Ceramic Coated, SAP Port, Ford, Mercury, Small Block Windsor, Pair
Part Number: DOU-D623
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $874.50
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
Headers, Long Tube, Steel, Painted, Ford, Mercury, 351C, Pair
Part Number: DOU-D670S4-B
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $633.65
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Silver Ceramic Coated, Dodge, Plymouth, Pair
Part Number: DOU-D4477
Estimated Ship Date: Today
$100.00 Mail-In Rebate
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Headers, Long Tube, Steel, Hi Temp Black, 1.75 in. Primary Tube, 3 in. Collector, Chevy, LS Swap, Pair
Part Number: DOU-D3336-B
Estimated Ship Date: Oct 20, 2025 if ordered today
Estimated Ship Date: Oct 20, 2025 if ordered today
Headers, Tri-Y, Steel, Black Painted, Chevy, GMC, 396-454, Pair
Part Number: DOU-D303Y-B
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Estimated Ship Date: Oct 20, 2025 if ordered today
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,166.80
Rebate Expires: 9/30/2025
Headers, Side Mount, Steel, Silver Ceramic Coated, Chevy, Pair
Part Number: DOU-D381
Estimated Ship Date: Today
$100.00 Mail-In Rebate
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$100.00 Mail-In Rebate
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Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Ceramic Coated, 1.75 in Primary, 3 in Collector, Ford, Mercury, FE, V8, Manual, Pair
Part Number: DOU-D625S
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $920.65
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
Headers, Long Tube, Steel, Black Ceramic Coated, Chevy, Pair
Part Number: DOU-D334-B
Estimated Ship Date: Today
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Headers, Long Tube, Steel, Painted, 3.0 in. Collector, SAP Port, Ford, Mercury, Small Block Windsor, Pair
Part Number: DOU-D623-B
Estimated Ship Date: Today
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $893.60
Rebate Expires: 9/30/2025
Headers, Mid-Length, Steel, Ceramic Coated, Ford, Mercury, 351W, Pair
Part Number: DOU-D669Y
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $893.60
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
Headers, Long Tube, Steel, Hi-Temp Black Coating, 3.0 in. Collector, D-port, Ford, 390, 427, 428, Pair
Part Number: DOU-D625-B
Estimated Ship Date: Today
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$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $951.95
Rebate Expires: 9/30/2025
Headers, Long Tube Style, Steel, Silver Ceramic Coated, SAP Port, 3 in. Collector, Ford, 255, 302, Pair
Part Number: DOU-D6671
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $951.95
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
Headers, Tri-Y, Steel, Painted, 2.5 in. Collector, SAP Port, Ford, 260, 289, Pair
Part Number: DOU-D661Y-B
Not Yet Reviewed
Estimated Ship Date: Oct 20, 2025 if ordered today
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $951.95
Rebate Expires: 9/30/2025
Headers, Tri-Y, Steel, Ceramic Coated, Chevy, 283-400, V8, Pair
Part Number: DOU-D367Y
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $951.95
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
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