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Doug Thorley Headers THY-560Y3-L-C Long Tube Tri-Y Exhaust Header for Lexus LX570 5.7L V8 Engines

Doug Thorley Headers THY-560Y3-L-C Long Tube Tri-Y Exhaust Header for Lexus LX570 5.7L V8 Engines

Doug Thorley Headers long tube tri-y headers deliver the ultimate in performance and gas mileage for your 2011-12 Lexus LX570. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient way to increase horsepower and... more

$751.49

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Doug Thorley Headers thy-310y-1-c Long Tube Header for GM Truck/SUV 4.8L, 5.3L, 6.0L, 6.2L

Doug Thorley Headers thy-310y-1-c Long Tube Header for GM Truck/SUV 4.8L, 5.3L, 6.0L, 6.2L

Doug Thorley Headers THY-310Y-1-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 1999-2012 GM Silverado/Sierra, Suburban, Tahoe/Yukon, Avalanche, Escalade, Denali, Hummer H2. Doug Thorley Headers is the originator... more

$763.00

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Best Seller
Doug Thorley Headers thy-560y-l-c Long Tube Header for Toyota Tundra 5.7L V8

Doug Thorley Headers thy-560y-l-c Long Tube Header for Toyota Tundra 5.7L V8

Doug Thorley Headers THY-560Y-L-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 2007-2012 Toyota Tundra. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient way to... more

$846.00

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Doug's Headers GM LS GM A-Body 1964-72 Ceramic Full Length Headers P/N D3336, steel

Doug's Headers GM LS GM A-Body 1964-72 Ceramic Full Length Headers P/N D3336, steel

Headers; Full Length; 1-3/4 in Primary; 3 in Diameter Collector; Steel; Ceramic; GM-LS-Series; GM A-Body 1964-72; Complete Kit more

$767.63

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Doug's Headers D581 1-7/8' 4-Tube Full Length Metallic Ceramic Coated Exhaust Header for Pontiac Firebird 326-455 70-81

Doug's Headers D581 1-7/8' 4-Tube Full Length Metallic Ceramic Coated Exhaust Header for Pontiac Firebird 326-455 70-81

Doug's Headers D581 1 7/8 4-Tube Full Length Header Pontiac Firebird 326-455 70-81 Metallic Ceramic more

$902.02

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Doug's Headers BBC Ceramic Shorty Headers P/N D306, metallic

Doug's Headers BBC Ceramic Shorty Headers P/N D306, metallic

Headers - Shorty - 1-3/4 in Primary - 3 in Diameter Collector - Steel - Metallic Ceramic - Big Block Chevy - Various Applications - Kit more

$721.94

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DOUG'S HEADERS SBF Driver Side Power Steering Pump Bracket Kit P/N H7609

DOUG'S HEADERS SBF Driver Side Power Steering Pump Bracket Kit P/N H7609

Power Steering Pump Bracket - Driver Side - Steel - Natural - Small Block Ford - Dougs Headers - Kit more

$36.67

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Doug Thorley Headers THY-340-C Exhaust Header for GM 5.3 LS4 4-Wheel Drive

Doug Thorley Headers THY-340-C Exhaust Header for GM 5.3 LS4 4-Wheel Drive

Doug Thorley Headers THY-340-C 4:1 mid-length headers deliver the ultimate in performance and gas mileage for your 2006-2009 Chevy Monte Carlo SS, Impala SS / 2005-2008 Pontiac Grand Prix GXP / 2007-2009 Buick Lacrosse. These mid-length 4:1 headers are... more

$814.93

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Doug Thorley Headers THY-352Y-L-C Tri-Y Header (Silver Long Tube with Y-PIPES, 2014-16 Silverado / Sierra, 2015-16 Suburban / Tahoe / Yukon, 5.3L, 1 Pack)

Doug Thorley Headers THY-352Y-L-C Tri-Y Header (Silver Long Tube with Y-PIPES, 2014-16 Silverado / Sierra, 2015-16 Suburban / Tahoe / Yukon, 5.3L, 1 Pack)

Doug Thorley Headers THY-352Y-L-C long tube tri-y headers deliver the ultimate in performance for your 2014-16 Silverado / Sierra, or 2015-16 Suburban / Tahoe / Yukon Doug Thorley Headers is the originator of the tri-y header design, which is the most... more

$799.00

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Doug Thorley Headers thy-509y-c Exhaust Header for Toyota Tacoma 2.4L, 2.7L 4 Cylinders

Doug Thorley Headers thy-509y-c Exhaust Header for Toyota Tacoma 2.4L, 2.7L 4 Cylinders

Doug Thorley Headers THY-509Y-C tri-y headers deliver the ultimate in performance and gas mileage for your 2005-2012 Toyota Tacoma, 4-Runner, Prado, Hilux. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient... more

$500.00

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Doug Thorley Headers THY-306Y1-C Exhaust Header for GM 454 Class 'A' Motorhome

Doug Thorley Headers THY-306Y1-C Exhaust Header for GM 454 Class 'A' Motorhome

Doug Thorley Headers THY-306Y1-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 1987-1994 GM Class 'A' Motorhome with the P-30 chassis. Doug Thorley Headers is the originator of the tri-y header design which is the... more

$942.00

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Doug Thorley Headers thy-515-ls-c Long Tube Header for Toyota Tacoma/4Runner/Tundra/FJ Cruiser 4.0L V6

Doug Thorley Headers thy-515-ls-c Long Tube Header for Toyota Tacoma/4Runner/Tundra/FJ Cruiser 4.0L V6

Doug Thorley Headers THY-515-LS-C 3:1 long tube headers deliver the ultimate in performance and for your 2005-2011 Toyota Tacoma / 2005-2012 FJ Cruiser, 4-Runner, Prado, Hilux. These 3:1 long tube headers are designed to replace the factory stock... more

$602.07

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Doug Thorley Headers thy-542y-o-c Exhaust Header for Toyota Truck 4Runner 22RE

Doug Thorley Headers thy-542y-o-c Exhaust Header for Toyota Truck 4Runner 22RE

Doug Thorley Headers THY-542Y-O-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 1981-1987 Toyota Pickup Truck, 4-Runner. Doug Thorley Headers is the originator of the tri-y header design, which is the most... more

$449.00

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Doug Thorley Headers thy-511y-1-c Exhaust Header with EGR for Toyota Tacoma 2.4L, 2.7L 4 Cylinders

Doug Thorley Headers thy-511y-1-c Exhaust Header with EGR for Toyota Tacoma 2.4L, 2.7L 4 Cylinders

Doug Thorley Headers THY-511Y-1-C tri-y headers deliver the ultimate in performance and gas mileage for your 2000-2004 Toyota Tacoma, 4-Runner. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient way to... more

$402.35

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Doug Thorley Headers THY-560Y1-L-C Long Tube Exhaust Header for Toyota Landcruiser 5.7L V8

Doug Thorley Headers THY-560Y1-L-C Long Tube Exhaust Header for Toyota Landcruiser 5.7L V8

Doug Thorley Headers THY-560Y1-L-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 2007-2012 Toyota Land Cruiser. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient way to... more

$739.00

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Doug Thorley Headers THY-375Y-C Exhaust Header

Doug Thorley Headers THY-375Y-C Exhaust Header

Doug Thorley Headers THY-375Y-C long tube tri-y headers deliver the ultimate in performance for your classic 1967-1974 Camaro / 1968-1974 Nova / 1968-1978 Chevelle, El Camino. Doug Thorley Headers is the originator of the tri-y header design, which is... more

$746.00

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Doug Thorley Headers thy-338-c Smog Legal Header for Chevrolet Camaro V6

Doug Thorley Headers thy-338-c Smog Legal Header for Chevrolet Camaro V6

Doug Thorley Headers THY-338-C shortie headers deliver the ultimate in performance and gas mileage for your 2010-2011 Chevy Camaro. Shortie headers are designed to replace the factory stock exhaust manifolds with a performance component that flows much... more

$420.00

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Doug Thorley Headers THY-309-1-C Universal Rear Swept Shorty Exit Exhaust Header for Lexus LS 4.8L-6.2L V8 Engines

Doug Thorley Headers THY-309-1-C Universal Rear Swept Shorty Exit Exhaust Header for Lexus LS 4.8L-6.2L V8 Engines

Doug Thorley Headers rear swept universal shorty headers deliver the ultimate in compact performance for your hot rod and/or custom application. These rear swept shorty headers replace the factory stock exhaust manifolds with a performance component... more

$602.46

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Doug Thorley Headers 83207 Axle-Back Exhaust for Nissan Juke 1.6L Turbo

Doug Thorley Headers 83207 Axle-Back Exhaust for Nissan Juke 1.6L Turbo

Doug Thorley Headers 83207 axle-back exhaust system for your 2011-2013 Nissan Juke delivers the performance and sound you're looking for. This cat-back exhaust comes equipped with our stainless steel straight-thru perforated muffler which increases... more

$244.00

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Doug Thorley Headers thy-506y-1-c Exhaust Header with 4.25" Flange for Toyota Tacoma 2.4L, 2.7L 4 Cylinders

Doug Thorley Headers thy-506y-1-c Exhaust Header with 4.25" Flange for Toyota Tacoma 2.4L, 2.7L 4 Cylinders

Doug Thorley Headers THY-506Y-1-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 1995-1999 Toyota Tacoma, 4-Runner. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient way... more

$438.72

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Doug Thorley Headers THY-700Y-SS Exhaust Header for Suzuki Samurai Tracker V8

Doug Thorley Headers THY-700Y-SS Exhaust Header for Suzuki Samurai Tracker V8

Doug Thorley Headers THY-19700Y-SS long tube tri-y headers deliver the ultimate in performance and gas mileage for your 1984-1995 Suzuki Samurai. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient way to... more

$374.00

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Doug Thorley Headers 83408 Center Exhaust for Smart Fortwo

Doug Thorley Headers 83408 Center Exhaust for Smart Fortwo

AXLE-BACK EXHAUST more

$390.00

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Doug Thorley Headers thy-542y-c Exhaust Header for Toyota Truck 4Runner 22RE

Doug Thorley Headers thy-542y-c Exhaust Header for Toyota Truck 4Runner 22RE

Doug Thorley Headers THY-542Y-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 1981-1987 Toyota Pickup Truck, 4-Runner. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient... more

$495.00

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Doug Thorley Headers THY-300Y-C Exhaust Header for GM 350 2-Wheel Drive

Doug Thorley Headers THY-300Y-C Exhaust Header for GM 350 2-Wheel Drive

Doug Thorley Headers THY-300Y-C long tube tri-y headers deliver the ultimate in performance for the GM 1961-1966 and 1973-1987 Pickup Truck, Suburban, Blazer/Jimmy. Doug Thorley Headers is the originator of the tri-y header design, which is the most... more

$702.59

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Doug Thorley Headers THY-333Y-C Exhaust Header for Pontiac G8

Doug Thorley Headers THY-333Y-C Exhaust Header for Pontiac G8

Doug Thorley Headers THY-333Y-C long tube tri-y headers deliver the ultimate in performance for your 2008-2010 Pontiac G8 GT, G8 GXP / 2008-2012 Holden Commodore, Caprice. Doug Thorley Headers is the originator of the tri-y header design, which is the... more

$679.00

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Doug Thorley Headers 89227 Y-Pipe with Resonators for Toyota Tacoma 4.0L 2/4 WD

Doug Thorley Headers 89227 Y-Pipe with Resonators for Toyota Tacoma 4.0L 2/4 WD

Doug Thorley Headers 89227 performance B-pipes for your 2005-2012 Toyota Tacoma deliver the final touch of performance and sound you're looking for. These performance B-pipes are installed between your header outlet and your exhaust system. They... more

$402.00

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Doug Thorley Headers thy-511-c Exhaust Header for Toyota Tacoma 2.4L, 2.7L 4 Cylinders

Doug Thorley Headers thy-511-c Exhaust Header for Toyota Tacoma 2.4L, 2.7L 4 Cylinders

Doug Thorley Headers THY-511-C shortie headers deliver the ultimate in performance and gas mileage for your 2000-2004 Toyota Tacoma, 4-Runner. Shortie headers are designed to replace the factory stock exhaust manifolds with a performance component that... more

$360.00

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Doug Thorley Headers THY-560Y2-L-C Long Tube Exhaust Header for Toyota Tundra 5.7L V8

Doug Thorley Headers THY-560Y2-L-C Long Tube Exhaust Header for Toyota Tundra 5.7L V8

Doug Thorley Headers THY-560Y2-L-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 2008-2010 Lexus LX570. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient way to... more

$807.00

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Doug Thorley Headers THY-508-C Exhaust Header for Toyota Tundra 4.7L V8

Doug Thorley Headers THY-508-C Exhaust Header for Toyota Tundra 4.7L V8

Doug Thorley Headers THY-508-C shortie headers deliver the ultimate in performance and gas mileage for your 2000-2004 Toyota Tundra. Shortie headers are designed to replace the factory stock exhaust manifolds with a performance component that flows... more

$669.00

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Doug Thorley Headers thy-542y-s-c Exhaust Header for Toyota Truck 4Runner 22RE

Doug Thorley Headers thy-542y-s-c Exhaust Header for Toyota Truck 4Runner 22RE

Doug Thorley Headers THY-542Y-S-C long tube tri-y headers deliver the ultimate in performance and gas mileage for your 1981-1987 Toyota Pickup Truck, 4-Runner. Doug Thorley Headers is the originator of the tri-y header design, which is the most... more

$532.00

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Doug Thorley Headers THY-343Y-C G Series Exhaust Header for Van Bus 5.7

Doug Thorley Headers THY-343Y-C G Series Exhaust Header for Van Bus 5.7

Long tube ceramic coated headers and Y-Pipe for 96-04 Chevy GMC G vans AND G series chassis school bus delivery vehicles with 350 5.7 V8. more

$716.37

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Doug Thorley Headers 83206 Cat-Back Exhaust for Nissan Xterra 4.0L 2/4WD

Doug Thorley Headers 83206 Cat-Back Exhaust for Nissan Xterra 4.0L 2/4WD

Doug Thorley Headers 83206 cat-back exhaust system for your 2005-2012 Nissan Xterra delivers the performance and sound you're looking for. This cat-back exhaust comes equipped with our stainless steel straight-thru perforated muffler which increases... more

$479.00

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Doug Thorley Headers 83205 Cat-Back Exhaust for Nissan Frontier CC/SB 4.0L 2/4 WD

Doug Thorley Headers 83205 Cat-Back Exhaust for Nissan Frontier CC/SB 4.0L 2/4 WD

Doug Thorley Headers 83205 cat-back exhaust system for your 2005-2012 Nissan Frontier delivers the performance and sound you're looking for. This cat-back exhaust comes equipped with our stainless steel straight-thru perforated muffler which increases... more

$395.00

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Doug Thorley Headers THY-268-1-C Short Block Exhaust Header for Ford 289/302

Doug Thorley Headers THY-268-1-C Short Block Exhaust Header for Ford 289/302

Doug Thorley Headers THY-268-1-C shortie headers deliver the ultimate in performance for your classic Ford car. These Shortie headers are designed to replace the factory stock exhaust manifolds with a performance component that flows much better than... more

$642.00

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Doug Thorley Headers THY-289Y-C Exhaust Header for Ford Mustang 289/302

Doug Thorley Headers THY-289Y-C Exhaust Header for Ford Mustang 289/302

Doug Thorley Headers THY-289Y-C long tube tri-y headers deliver the ultimate in performance for your 1964-1968 Ford Mustang. Doug Thorley Headers is the originator of the tri-y header design, which is the most efficient way to increase horsepower and... more

$787.52

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Doug Thorley Headers THY-517-C Short Block Exhaust Header for Toyota Tacoma 4.0L

Doug Thorley Headers THY-517-C Short Block Exhaust Header for Toyota Tacoma 4.0L

Doug Thorley Headers THY-517-C shortie headers deliver the ultimate in performance and gas mileage for your 2012 Toyota Tacoma. Shortie headers are designed to replace the factory stock exhaust manifolds with a performance component that flows much... more

$519.00

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Doug Thorley Headers 89234 Y-Pipe with Resonators for Toyota Tundra 5.7L 2/4 WD

Doug Thorley Headers 89234 Y-Pipe with Resonators for Toyota Tundra 5.7L 2/4 WD

Doug Thorley Headers 89234 performance B-pipes for your 2007-2009 Toyota Tundra deliver the final touch of performance and sound you're looking for. These performance B-pipes are installed between your header outlet and your exhaust system. They... more

$494.00

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Doug Thorley Headers THY-325-C Exhaust Header for GM LS Sandrail

Doug Thorley Headers THY-325-C Exhaust Header for GM LS Sandrail

Doug Thorley Headers THY-325-C 4:1 long tube headers deliver the ultimate in performance and for your GM LS motor powered Sandrail / Dune Buggy. These 4:1 long tube headers include integrated resonators that keep sound levels manageable while providing... more

$649.00

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Doug Thorley Headers THY-470-L-C Long Tube Exhaust Header for Nissan Xterra/Frontier/Pathfinder 4.0L

Doug Thorley Headers THY-470-L-C Long Tube Exhaust Header for Nissan Xterra/Frontier/Pathfinder 4.0L

Doug Thorley Headers THY-470-L-C 3:1 long tube headers deliver the ultimate in performance and for your 2005-2012 Nissan Frontier, Pathfinder, Xterra, Navara / Suzuki Equator. These 3:1 long tube headers are designed to replace the factory stock... more

$584.59

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Doug Thorley Headers THY-342-C W Series Exhaust Header for 6.0 Delivery Chassis

Doug Thorley Headers THY-342-C W Series Exhaust Header for 6.0 Delivery Chassis

Long tube stainless ceramic coated headers with Y-Pipe for W42 workhorse chassis delivery vehicles with GM 5.3/6.0l V8. more

$1,199.08

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