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.
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C10 LS Engine Install Kit W/Headers High or Low A/C Mounts67-72 C10, Includes Engine Stands, Adjustable Engine Mounts (High or Low A/C Mounts), Transmission Cross Member, Doug Thorley Ceramic Coated THY-323Y-C Headers, W/Polyurethane Mounts
Add to Compare Product Takes 10 Days to ShipPart # 6772LS1-FRK -
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Doug Thorley Tri-Y Headers for 1961-87 Chevy Truck1961-87 Chevy Truck 283-400 Suburban, Blazer/Jimmy
Add to Compare Vendor Takes 15 Days to ShipPart # THY-300Y-C$1,195.00 -
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Doug Thorley Tri-Y Headers for 1967-72 Chevy / GM Trucks with LS Engine1967-72 Chevy / GM Trucks with LS Engine 1-5/8" Primaries All LS (Except LS7)
Add to Compare Vendor Takes 15 Days to ShipPart # THY-324Y-C$1,095.00 -
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LS Engine Install Kit W/Headers for 64-67 Chevy, Buick, Olds, Pontiac A-Body64-67 Chevy, Buick, Olds, Pontiac A-Body, Includes Oil Pan, Engine Stands, Adjustable Engine Mounts, Transmission Cross Member, Doug Thorley Ceramic Coated THY-346-C Headers, W/Polyurethane Mounts
Add to Compare Product Takes 10 Days to ShipPart # 6467LS1-FRK -
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Doug Thorley Tri-Y Headers 1967-87 Chevy / GM Trucks1967-87 Chevy / GM Trucks with LS Engine 1-7/8" Primaries All LS (Except LS7)
Add to Compare In StockPart # THY-323Y-C$1,095.00 -
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Doug Thorley Tri-Y Header for 1993-99 Jeep Grand Cherokee1993-99 Jeep Grand Cherokee, 5.2L-5.9L, 2/4Wd
Add to Compare Vendor Takes 15 Days to ShipPart # THY-630Y-C$1,198.93 -
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Doug Thorley Long Tube Headers 3:1 SsRace Only (See More Information For App.)
Add to Compare Vendor Takes 15 Days to ShipPart # THY-515-LS-C$780.00 -
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Doug Thorley Tri-Y Header for 1984-95 Suzuki Samurai1984-95 Suzuki Samurai, 1.3L/ 1.6L (8 Valve)
Add to Compare Vendor Takes 15 Days to ShipPart # THY-700Y-SS$650.00 -
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Doug Thorley Headers, Stainless Steel Headers05-09 Lexus GX470, 4Runner, 1 5/8th Tubes, 2.5" Collector, Off-road use Only
Add to Compare Vendor Takes 15 Days to ShipPart # THY-561-SS-C$975.00 -
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Doug Thorley Headers Ls Series 1-3/4" Primary Tube for 1964-67 Chevelle1964-67 Chevelle
Add to Compare In StockPart # THY-346-C$995.00 -
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Long Tube Tri-Y Headers for 2009-12 Chevy/GMC Canyon2009-12 Chevy/GMC Canyon
Add to Compare Vendor Takes 15 Days to ShipPart # THY-344Y-C$995.00 -
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Doug Thorley Ls Headers for 1955-57 Chevy Fullsize1955-57 Chevy Fullsize
Add to Compare In StockPart # THY-358Y-C$1,195.00 -
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Doug Thorley Headers 4:1 3/4 for 1964-87 Chevelle/El Camino1964-87 Chevelle/El Camino - Small Block Chevy
Add to Compare Vendor Takes 15 Days to ShipPart # THY-380Y-C$816.00 -
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Doug Thorley Tri-Y Ceramic Headers for 1962-67 Chevy II, Nova M2 IFS1962-67 Chevy II, Nova M2 IFS
Add to Compare Vendor Takes 15 Days to ShipPart # THY-335Y-C$1,095.00 -
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Doug Thorley Shortie Tri-Y Headers for 2007-14 Toyota Tundra2007-14 Toyota Tundra/Land Cruiser, 5.7L, 2/4Wd
Add to Compare Vendor Takes 15 Days to ShipPart # THY-560Y-C$1,468.00 -
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Doug Thorley Long Tube Tri-Y Headers 2014 Silverado/Sierra2014 Silverado/Sierra (Race Use Only)
Add to Compare Vendor Takes 15 Days to ShipPart # THY-352Y-L-C$1,408.00 -
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Doug Thorley Shortie Headers, UniversalUniversal Header Rear Swept Exit, LS Series Motors except LS7
Add to Compare Vendor Takes 15 Days to ShipPart # THY-309-1-C$895.00 -
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Doug Thorley Ls Series Tri-Y Headers for 1955-60 GM Truck 3100 Series1955-60 GM Truck 3100 Series
Add to Compare Vendor Takes 15 Days to ShipPart # THY-360Y-C$1,095.00 -
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Doug Thorley Short Tube Headers for 2005-09 Toyota 4 Runner2005-09 Toyota 4 Runner
Add to Compare In StockPart # THY-563-SS-C$1,284.00 -
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Doug Thorley Ls Series Tri-Y Headers for 1947-54 GM Truck 3100 Series1947-54 GM Truck 3100 Series
Add to Compare Vendor Takes 15 Days to ShipPart # THY-330Y-C$1,095.00 -
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Doug Thorley Tri-Y Headers for 1967-72 Chevy / GM Trucks with Small Blocks1967-72 Chevy / GM Trucks with Small Block Chevy "No D Ports"
Add to Compare In StockPart # THY-372Y-C$1,032.00 -
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Doug Thorley Shortie Header for 2005-14 Nissan Frontier2005-14 Nissan Frontier/Pathfinder/Xterra/Equator/Navara
Add to Compare In StockPart # THY-470-L-C$749.00 -
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Doug Thorley Tri-Y Header for 1988-98 Suzuki Samurai/Geo Tracker1988-98 Suzuki Samurai/Geo Tracker, 1.6L (16 Valve)
Add to Compare Vendor Takes 15 Days to ShipPart # THY-716Y-SS$496.00 -
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Doug Thorley Short Tube Headers for 2006-09 Impala and 2005-08 Monte Carlo SS2006-09 Impala and 2005-08 Monte Carlo SS
Add to Compare Vendor Takes 15 Days to ShipPart # THY-340-C$1,176.00 -
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Doug Thorley Shortie Header without exterior EGR tube for 1995-04 Toyota Tacoma/4Runner/Tundra1995-04 Toyota Tacoma/4Runner/Tundra, 3.4L, 2/4Wd
Add to Compare Vendor Takes 15 Days to ShipPart # THY-507-C$1,195.00 -
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Doug Thorley Long Tube Headers 3:1 Race OnlyRace Only (See More Information For App.)
Add to Compare Vendor Takes 15 Days to ShipPart # THY-465-L-C$795.00 -
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Doug Thorley Ls Headers Silver Ceramic for 1961-64 Chevy Fullsize1961-64 Chevy Fullsize
Add to Compare In StockPart # THY-361-C$825.00 -
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Doug Thorley Tri-Y Headers for 2007-14 Toyota Tundra2007-14 Toyota Tundra, 5.7L, 2/4Wd ("Race" Use Only)
Add to Compare Vendor Takes 15 Days to ShipPart # THY-560Y-L-C$1,421.00 -
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Chevy Truck LS Engine Install Kit W/Headers for73-87 Chevy Truck Includes Engine Stands73-87 Chevy Truck Includes Engine Stands, Adjustable Engine Mounts (High or Low A/C Mounts), Transmission Cross Member, Doug Thorley Ceramic Coated THY-322Y-C Headers, W/Polyurethane Mounts
Add to Compare Product Takes 10 Days to ShipPart # 7387LS1-FRK -
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Doug Thorley Tri-Y Headers for 1963-66 Chevy C101963-66 Chevy C10 with LS Swap All LS (Except LS7)
Add to Compare In StockPart # THY-322Y-C$1,195.00 -
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Chevy Truck LS Engine Install Kit W/Headers for63-66 Chevy Truck Includes Engine Stands63-66 Chevy Truck Includes Engine Stands, Adjustable Engine Mounts (High or Low A/C Mounts), Transmission Cross Member, Doug Thorley Ceramic Coated THY-322Y-C Headers, W/Polyurethane Mounts
Add to Compare Product Takes 10 Days to ShipPart # 6366LS1-FRK -
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Doug Thorley Long Tube Header 4:1 (1-3/4" To 1-7/8") for 1967-74 Camaro1967-69 Camaro, LS-Series Motor Swap, 4.8L-6.2L
Add to Compare In StockPart # THY-320-C$1,095.00 -
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Doug Thorley Tri-Y Header for2012-14 Nissan Patrol2012-14 Nissan Patrol/Safari/Infiniti Qx56, 5.6L, 2/4Wd
Add to Compare Vendor Takes 15 Days to ShipPart # THY-481Y-LS-C$913.13 -
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Doug Thorley Block Hugger Headers UniversalUniversal Header Center Dump, LS Series Motors, 4.8L-6.2L
Add to Compare Vendor Takes 15 Days to ShipPart # THY-326-C$895.00 -
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Doug Thorley Tri-Y Headers for 1973-87 GM Truck 1/2 Ton and 1973-91 GM Truck 3/4 & 1 Ton1973-87 GM Truck 1/2 Ton and 1973-91 GM Truck 3/4 & 1 Ton
Add to Compare Vendor Takes 15 Days to ShipPart # THY-364Y-C$1,195.00 -
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Long Tube Headers (Race Use Only) for 2013-14 Toyota Cruiser2013-14 Toyota Cruiser
Add to Compare Vendor Takes 15 Days to ShipPart # THY-518-LS-C$626.00
