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The same way Summit Racing offers more than just racing parts, Doug Thorley Headers makes much more than just headers. Doug Thorley manufactures a full line of exhaust...
The same way Summit Racing offers more than just racing parts, Doug Thorley Headers makes much more than just headers. Doug Thorley manufactures a full line of exhaust products, including complete exhaust systems, free-flowing Y-pipes, tailpipes, and much more. And yes, you’ll find legendary Thorley headers, too. We’ve got full-length, tri-Y, block hugger, and shorty headers to meet your torque and power needs. Unleash the beast under your hood—shop Doug Thorley Headers exhaust parts at Summit Racing today!
The same way Summit Racing offers more than just racing parts, Doug Thorley Headers makes much more than just headers. Doug Thorley manufactures a full line of exhaust products, including complete exhaust systems, free-flowing Y-pipes, tailpipes, and much more. And yes, you’ll find legendary Thorley headers, too. We’ve got full-length, tri-Y, block hugger, and shorty headers to meet your torque and power needs. Unleash the beast under your hood—shop Doug Thorley Headers exhaust parts at Summit Racing today!
Headers, Shorty, Stainless Steel, Silver Ceramic Coated, Toyota, Pair
Part Number: DTE-561-SS-C
Estimated Ship Date: Today
Estimated Ship Date: Today
Headers, Shorty, Steel, Ceramic Coated, Chevy, GMC, Pickup, SUV, 4.8, 5.3L, Pair
Part Number: DTE-309-C
Estimated Ship Date: Today
Estimated Ship Date: Today
Collector Gaskets, Graphite Coated Steel Core Laminate, 3-hole, 2.5 in. I.D., Pair
Part Number: DTE-9005-2
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Flange Gasket, Flat Gasket, Graphite Coated Steel Core, 2.50 in. O.D., Pair
Part Number: DTE-9013-2
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Header; 4:1 Header; Ceramic Coating; Tube Size 1.5 in.; Collector Size 2.5 in.; Passenger Exit
Part Number: DTE-511C
Estimated Ship Date: May 19, 2025 if ordered today
Estimated Ship Date: May 19, 2025 if ordered today
Headers, Long Tube, Steel, Silver Ceramic Coated, 1.50 in. Tubes, 2.25 in. Collector, Nissan, Pair
Part Number: DTE-465-L-C
Estimated Ship Date: Today
Estimated Ship Date: Today
Collector Gaskets, Graphite Coated Steel Core Laminate, 3-Hole, 2.25 in. Inside Diameter, Each
Part Number: DTE-9012
Estimated Ship Date: Today
Estimated Ship Date: Today
Exhaust Gasket, Header, 1,200 Degree Temperature, Toyota, 20R/22R, Each
Part Number: DTE-9542
Estimated Ship Date: Jun 30, 2025 if ordered today
Estimated Ship Date: Jun 30, 2025 if ordered today
Headers, Tri-Y, Steel, Silver Ceramic Coated, 1 1/2 in. Primary Tube O.D., 2.250 in. Collector Diameter, Toyota, 2.7L, Each
Part Number: DTE-509Y-C
Estimated Ship Date: May 19, 2025 if ordered today
Estimated Ship Date: May 19, 2025 if ordered today
Exhaust Header, 4-1, 1-Piece, Steel, Ceramic Coated, for Nissan, 4.0L, Pair
Part Number: DTE-470-L-C
Estimated Ship Date: May 29, 2025 if ordered today
Estimated Ship Date: May 29, 2025 if ordered today
Header Gasket, Graphite-Coated Steel Core Laminate, Stock Port, Chrysler, Big Block, Pair
Part Number: DTE-9151-2
Not Yet Reviewed
Estimated Ship Date: Jun 12, 2025 if ordered today
Estimated Ship Date: Jun 12, 2025 if ordered today
Exhaust Header
Part Number: DTE-512-C
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
SHORTIE HEADERS
Part Number: DTE-517-C
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
3:1 LONG TUBE HEADERS
Part Number: DTE-517-LS-C
Not Yet Reviewed
TRI Y HEADERS
Part Number: DTE-637Y-C
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
STAINLESS STEEL HEADER
Part Number: DTE-700Y-SS
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
2-BOLT FLANGE GASKET
Part Number: DTE-9002
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
Collector Gasket, Graphite Coated Steel Core Laminate, 2-Hole, 2.25 in. Inside Diameter, Each
Part Number: DTE-9004
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
GASKET FLANGE
Part Number: DTE-9008
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
CATALYTIC FLANGE GASKET
Part Number: DTE-9009
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
CATALYTIC FLANGE GASKET
Part Number: DTE-9010
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
Header Gasket, Graphite-Coated Steel Core Laminate, Stock Port, Dodge, 8.0L, Pair
Part Number: DTE-9160-2
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
CATALYTIC FLANGE GASKET, FORD 6.8L V-10
Part Number: DTE-9218-3
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
COLLECTOR FLANGE GASKET, TOYOTA 2.5" I.D. CIRCULAR CRUSH GASKET (SET OF 2)
Part Number: DTE-9560-2
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
HEADER FLANGE GASKET
Part Number: DTE-9634
Not Yet Reviewed
Estimated Ship Date: Jun 6, 2025 if ordered today
Estimated Ship Date: Jun 6, 2025 if ordered today
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