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Doug Thorley Headers

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!

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Doug Thorley Headers Parts and Accessories

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Doug Thorley Headers 324Y-C - Doug Thorley Headers

Click here for more information about Doug Thorley Headers 324Y-C - Doug Thorley Headers

Exhaust Header; Tri-Y Header; Silver Ceramic Coating; For Use w/GM LS1 Swap; C10 w/ CCP Mounts

(1)

Part Number: DTE-324Y-C More Detail...

Estimated Ship Date: Today

$642.97

  • Free Shipping

    Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Doug Thorley Headers 505C - Doug Thorley Headers

Click here for more information about Doug Thorley Headers 505C - Doug Thorley Headers

Headers, Full Length, Steel, Ceramic Coated, Toyota, 3.0L, Kit

Not Yet Reviewed

Part Number: DTE-505C More Detail...

Estimated Ship Date: Today

$633.97

  • Free Shipping

    Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Doug Thorley Headers 309-C - Doug Thorley Headers

Click here for more information about Doug Thorley Headers 309-C - Doug Thorley Headers

Headers, Shorty, Steel, Ceramic Coated, Chevy, GMC, Pickup, SUV, 4.8, 5.3L, Pair

(4)

Part Number: DTE-309-C More Detail...

Estimated Ship Date: Today

$508.97

  • Free Shipping

    Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Doug Thorley Headers 323Y-C - Doug Thorley Headers

Click here for more information about Doug Thorley Headers 323Y-C - Doug Thorley Headers

Headers, Tri-Y, Steel, Silver Ceramic Coated, 3.00 in. Collector, Engine Swap, Chevy Small Block LS, Pair

(2)

Part Number: DTE-323Y-C More Detail...

Estimated Ship Date: Today

$636.97

  • Free Shipping

    Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Doug Thorley Headers 506Y-C - Doug Thorley Tri-Y Headers

Click here for more information about Doug Thorley Headers 506Y-C - Doug Thorley Tri-Y Headers

Headers, 4-1, One Piece, Steel, Ceramic Coated, Toyota, 2.7L, Each

(1)

Part Number: DTE-506Y-C More Detail...

Estimated Ship Date: Today

$406.97

  • Free Shipping

    Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Doug Thorley Headers 630Y-C - Doug Thorley Tri-Y Headers

Click here for more information about Doug Thorley Headers 630Y-C - Doug Thorley Tri-Y Headers

Headers, Tri-Y, Steel, Ceramic Coated, Jeep, 5.2L, Pair

(2)

Part Number: DTE-630Y-C More Detail...

Estimated Ship Date: Today

$793.97

  • Free Shipping

    Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Doug Thorley Headers 375Y-C - Doug Thorley Tri-Y Headers

Click here for more information about Doug Thorley Headers 375Y-C - Doug Thorley Tri-Y Headers

Headers, Tri-Y, Steel, Silver Ceramic Coated, Chevy, GMC, Car, Truck, Small Block, Pair

Not Yet Reviewed

Part Number: DTE-375Y-C More Detail...

Estimated Ship Date: Today

$633.97

  • Free Shipping

    Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Doug Thorley Headers 515-LS-C - Doug Thorley Headers

Click here for more information about Doug Thorley Headers 515-LS-C - Doug Thorley Headers

Headers, Full-Length, Steel, Ceramic Coated, Toyota, SUV, Pickup, 4.0L, Pair

Not Yet Reviewed

Part Number: DTE-515-LS-C More Detail...

Estimated Ship Date: Today

$537.97

  • Free Shipping

    Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Doug Thorley Headers 376Y1C - Doug Thorley Tri-Y Headers

Click here for more information about Doug Thorley Headers 376Y1C - Doug Thorley Tri-Y Headers

Headers, Tri-Y, Steel, Silver Ceramic Coated, Chevy, Small Block, Pair

(1)

Part Number: DTE-376Y1C More Detail...

Estimated Ship Date: Today

$626.97

  • Free Shipping

    Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

Doug Thorley Headers 218Y-C - Doug Thorley Tri-Y Headers

Click here for more information about Doug Thorley Headers 218Y-C - Doug Thorley Tri-Y Headers

Headers, Tri-Y, Steel, Silver Ceramic Coated, Ford, Pickup, 6.8L, Kit

Not Yet Reviewed

Part Number: DTE-218Y-C More Detail...

Estimated Ship Date: Today

$726.97

  • Free Shipping

    Order this item and get free delivery and handling on your entire order! Offer excludes truck freight fees. Valid on orders shipped in the contiguous United States.

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