Doug Thorley

Optimize Your Exhaust with Doug Thorley

Doug Thorley Headers is a well-respected manufacturer known for its exhaust systems and headers, particularly for American muscle and classic vehicles. With a focus on enhancing engine efficiency and sound, Doug Thorley products are designed to deliver both performance gains and durability. Doug Thorley offers a wide range of headers, including long-tube and shorty designs, crafted from premium materials to optimize exhaust flow and improve horsepower and torque. The company also offers a selection of performance accessory parts, exhaust tips and gaskets, designed to complement their headers and exhaust systems for a complete performance upgrade. Shop your favorite Doug Thorley exhaust products here at CPP.

Doug Thorley Long Tube Headers 4:1 for 1966-74 Chevelle/El Camino
1966-74 Chevelle/El Camino, 1967-74 Camaro & 1968-74 Nova, 396-454
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Part # THY-313-C

0%

$916.00
Doug Thorley Long Tube Headers 4:1 (2" Primary Tubes) for 1968-78 Chevelle/El Camino
1968-78 Chevelle/El Camino, 454-502 Big Block
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Part # THY-351-C

0%

$723.00
Doug Thorley Shortie Headers, Universal
Universal Header Rear Swept Exit, LS Series Motors except LS7
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Part # THY-309-1-C

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$895.00
Doug Thorley Ls Series Tri-Y Headers for 1947-54 GM Truck 3100 Series
1947-54 GM Truck 3100 Series
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Part # THY-330Y-C

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$1,095.00
Doug Thorley Shortie Tri-Y Headers for 2007-14 Toyota Tundra
2007-14 Toyota Tundra/Land Cruiser, 5.7L, 2/4Wd
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Part # THY-560Y-C

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$1,468.00
Doug Thorley Tri-Y Headers for 1963-66 Chevy C10
1963-66 Chevy C10 with LS Swap All LS (Except LS7)
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Part # THY-322Y-C

0%

$1,195.00
Doug Thorley Tri-Y Header for 1984-95 Suzuki Samurai
1984-95 Suzuki Samurai, 1.3L/ 1.6L (8 Valve)
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Part # THY-700Y-SS

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$650.00
Doug Thorley Short Tube Headers for 1966-78 Mustang
1966-78 Mustang, 1969-77 Maverick, 1966-76 Ranchero
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Part # THY-268-1-C

0%

$900.27
Doug Thorley Tri-Y Headers, Silver Ceramic Coated, V-10
99-04 Ford Super Duty, V-10, 1 5/8th Tubes 2.5" Collector
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Part # THY-218Y-C

0%

$1,067.46
Doug Thorley Long Tube Headers 3:1 Ss
Race Only (See More Information For App.)
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Part # THY-515-LS-C

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$780.00
Doug Thorley Tri-Y Headers 1967-87 Chevy / GM Trucks
1967-87 Chevy / GM Trucks with LS Engine 1-7/8" Primaries All LS (Except LS7)
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Part # THY-323Y-C

0%

$1,095.00
Doug Thorley Long Tube Headers (D-Port Only)
326-455 V8
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Part # THY-341-C

0%

$849.00
Doug Thorley Tri-Y Header for 1988-98 Chevy/GMC 1500 Series Truck
1988-98 Chevy/GMC 1500 Series Truck/Suv, 5.3L-6.2L LS Series
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In Stock

Part # THY-349Y-2-C

0%

$687.00

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