Availability
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $617.20
Rebate Expires: 9/30/2025
Headers, Mid-length, Steel, Silver Ceramic Coated, Round Port, Buick, Chevrolet, Oldsmobile, Pontiac, Small Block LS, Pair
Part Number: DOU-D3350
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $617.20
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $650.10
Rebate Expires: 9/30/2025
Headers, Tri-Y, Steel, Ceramic Coated, Jeep, 304, Pair
Part Number: DOU-D1104Y
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $650.10
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $960.95
Rebate Expires: 9/30/2025
Headers, Long Tube, Stainless Steel, 1.75 in. Primary Tube, 3 in. Collector, Chevy, LS Swap, Pair
Part Number: DOU-D3336-SS
Not Yet Reviewed
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $960.95
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,225.70
Rebate Expires: 9/30/2025
Headers, Long Tube, Stainless Steel, Natural, 3-Bolt Flange ,Pontiacr. Pair
Part Number: DOU-D567-SS
Not Yet Reviewed
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,225.70
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $881.95
Rebate Expires: 9/30/2025
Headers, Long Tube, Stainless Steel, Natural, Ford, 390-427 FE, Pair
Part Number: DOU-D626-SS
Not Yet Reviewed
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: $951.95
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Ceramic Coated, Ford, Mercury, 351C, 4V, Pair
Part Number: DOU-D670S4
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $951.95
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,031.55
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Ceramic Coated, Oldsmobile, 400, 455, Pair
Part Number: DOU-D743
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,031.55
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,060.20
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Silver Ceramic Coated, Chevy, Pair
Part Number: DOU-D317
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,060.20
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,076.10
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Silver Ceramic Coated, 1 7/8 in. Primary, 3 in. Collector, Buick, 400, 455, Pair
Part Number: DOU-D202
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,076.10
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $945.73
Rebate Expires: 9/30/2025
Headers, Fenderwell, Steel, Ceramic Coated, LS Swap, Chevy, Pair
Part Number: DOU-D366
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $945.73
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $931.80
Rebate Expires: 9/30/2025
Headers, Long Tube, Stainless Steel, Natural, Pontiac, 326, 350, 400, V8, Pair
Part Number: DOU-D568-SS
Not Yet Reviewed
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $931.80
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, Chevy, Pontiac, Pair
Part Number: DOU-D3321
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $951.95
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $874.50
Rebate Expires: 9/30/2025
Headers, Tri-Y, Steel, Ceramic Coated, Ford, 260, 289, 302, C-4 Automatic, Pair
Part Number: DOU-D660YA
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $874.50
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $602.35
Rebate Expires: 9/30/2025
Headers, Shorty, Stainless Steel, Natural, Chevy, Pontiac, Pair
Part Number: DOU-D3320-SS
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $602.35
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $935.50
Rebate Expires: 9/30/2025
Headers, Tri-Y, Steel, Ceramic Coated, Ford, Mercury, 221, 260, 289, Pair
Part Number: DOU-D662Y
Not Yet Reviewed
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $935.50
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,254.35
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Silver Ceramic Coated, 2 in. Primary, 3.5 in. Collector, Pontiac, 400, 455, Pair
Part Number: DOU-D523
Not Yet Reviewed
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,254.35
Rebate Expires: 9/30/2025
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $920.65
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Ceramic Coated, AMC, V8, Pair
Part Number: DOU-D103
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $920.65
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $812.95
Rebate Expires: 9/30/2025
Header, Long Tube, Steel, Silver Ceramic Coated, 1 3/4 in. Tubes, 3.0 in. Collector, Oldsmobile, Pair
Part Number: DOU-D741
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $812.95
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,094.65
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Silver Ceramic Coated, Chevy, Pontiac, Pair
Part Number: DOU-D319
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,094.65
Rebate Expires: 9/30/2025
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $935.50
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Ceramic Coated, Chevy, GMC, Small Block, Pair
Part Number: DOU-D310
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $935.50
Rebate Expires: 9/30/2025
Estimated Ship Date: Oct 20, 2025 if ordered today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $782.70
Rebate Expires: 9/30/2025
Headers, Mid-Length, Stainless Steel, Natural, Ford, Mercury, 351W, Pair
Part Number: DOU-D669Y-SS
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $782.70
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $591.75
Rebate Expires: 9/30/2025
Headers, Mid-length, Steel, Silver Ceramic Coated, Round Port, Buick, Chevrolet, Oldsmobile, Pontiac, Small Block LS, Pair
Part Number: DOU-D3357
Not Yet Reviewed
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $591.75
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $848.50
Rebate Expires: 9/30/2025
Headers, Long Tube, Steel, Silver Ceramic, 1.75 in. Primary Tube, 2.5 in. Collector, Chevy, LS Swap, Pair
Part Number: DOU-D3347
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $848.50
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $843.75
Rebate Expires: 9/30/2025
Headers, Shorty, Steel, Ceramic Coated, Chevy, Small Block, Pair
Part Number: DOU-D304
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $843.75
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,006.60
Rebate Expires: 9/30/2025
Headers, Long Tube, Stainless Steel, Natural, 3-Bolt Flange Bigl Block,Mopar. Pair
Part Number: DOU-D451-SS
Not Yet Reviewed
Estimated Ship Date: Today
$100.00 Mail-In Rebate
Price after Manufacturer Rebate: $1,006.60
Rebate Expires: 9/30/2025
Estimated Ship Date: Today
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