Doug Thorley Headers at Summit Racing

Doug Thorley Headers Collector Gaskets THY-9008

GASKET FLANGE

Part Number: DTE-9008

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

Doug Thorley Headers Collector Gaskets THY-9009

CATALYTIC FLANGE GASKET

Part Number: DTE-9009

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

Doug Thorley Headers Collector Gaskets THY-9010

CATALYTIC FLANGE GASKET

Part Number: DTE-9010

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

Doug Thorley Exhaust Header Gaskets THY-9015

GASKET

Part Number: DTE-9015

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

Doug Thorley Headers Collector Gaskets THY-9016

CATALYTIC FLANGE GASKET

Part Number: DTE-9016

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

Doug Thorley Headers Collector Gaskets THY-9218-3

CATALYTIC FLANGE GASKET, FORD 6.8L V-10

Part Number: DTE-9218-3

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

Doug Thorley Headers Collector Gaskets THY-9353-2

COLLECTOR FLANGE GASKET, 2014-15 GM TRUCK / SUV, DRIVER & PASSENGER SIDE (SET OF 2)

Part Number: DTE-9353-2

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

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Estimated Ship Date: Oct 13, 2025 if ordered today

Doug Thorley Headers Headers THY-184Y1-L-C

2013-17 DODGE RAM TRUCK / "RACE" ONLY, NO CATS, Y-PIPE INCLUDED (2WD)

Part Number: DTE-184Y1-L-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers Headers THY-214Y-FI-C

Exhaust Header

Part Number: DTE-214Y-FI-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers Headers THY-214Y-FI-S-C

Exhaust Header

Part Number: DTE-214Y-FI-S-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Tri-Y Headers THY-214Y-FI1-C

Headers, Tri-Y, Steel, Silver Ceramic Coated, Ford, Pickup, 460, Kit

Part Number: DTE-214Y-FI1-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Tri-Y Headers THY-214Y-FI4-C

Headers, Tri-Y, Steel, Silver Ceramic Coated, Ford, Class A Motor Home, 429, 460, Kit

Part Number: DTE-214Y-FI4-C

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers THY-268-1-C

Headers, Shorty, Steel, Silver Ceramic Coated, Ford, Mercury, Passenger Car, 302, Pair

Part Number: DTE-2681-C

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers THY-464-2-C

Headers, Shorty, Steel, Ceramic Coated, for Nissan, Pickup/D21 Pickup, 3.0L, V6, Kit

Part Number: DTE-464-2C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Tri-Y Headers THY-481Y-LS-C

Headers, Tri-Y, Long Tube, Stainless Steel, Silver Ceramic Coated, 2.25 in. Collector, Infiniti, 5.6L, Pair

Part Number: DTE-481-YLSC

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers Headers THY-507-S-C

Exhaust Header

Part Number: DTE-507-S-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers Headers THY-508-C

Exhaust Header

Part Number: DTE-508-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Tri-Y Headers THY-509Y-C

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

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers Headers THY-512-C

Exhaust Header

Part Number: DTE-512-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers THY-515-1-C

Headers, Shorty, Steel, Silver Ceramic Coated, 1 1/2 in. Primary Tube O.D., 2.250 in. Collector Diameter, Toyota, V6, Pair

Part Number: DTE-515-1C

Not Yet Reviewed

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Doug Thorley Headers Headers THY-517-C

SHORTIE HEADERS

Part Number: DTE-517-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers Headers THY-517-LS-C

3:1 LONG TUBE HEADERS

Part Number: DTE-517-LS-C

Not Yet Reviewed

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Doug Thorley Tri-Y Headers THY-560Y-C

Headers, Shorty, Steel, Ceramic Coated, Toyota, 5.7L, Each

Part Number: DTE-560Y-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Tri-Y Headers THY-560Y-L-C

Headers, Long Tube, Steel, Ceramic Coated, Toyota, 5.7L, Each

Part Number: DTE-560Y-L-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers THY-563-SS-C

Headers, Shortie, Toyota, Stainless, Ceramic Coated, Pair

Part Number: DTE-563-SS-C

Not Yet Reviewed

Estimated Ship Date: Nov 6, 2025 if ordered today

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Estimated Ship Date: Nov 6, 2025 if ordered today

Doug Thorley Headers Parts and Accessories