Doug Thorley Headers

Refine by Year

See More
 

Refine by Make

See More
 

Refine by Submodel

See More
 
Doug Thorley Headers Overview

Doug Thorley Headers Overview

WE ARE STILL A 100% AMERICAN MADE PRODUCT, WHICH IS PRODUCED AT OUR FACTORY IN CORONA, CALIFORNIA. OUR GOAL, AS EVER, IS THE MAXIMIZING OF TORQUE AND HORSEPOWER GAINS AND WE WILL CONTINUE THIS TIME HONORED TRADITION AS WE MOVE INTO THE FUTURE. ALL OF US AT DOUG THORLEY HEADERS THANK ALL OF OUR CUSTOMERS FOR YOUR CONTINUED SUPPORT OVER THE YEARS AND FOR RECOGNIZING THAT OUR HEADERS AND EXHAUST SYSTEMS, DOLLAR FOR DOLLAR, ARE THE VERY BEST VALUE IN THE INDUSTRY.

THY-289Y-C from Doug Thorley Headers

1968 Ford Mustang Doug Thorley Headers THY-289Y-C Tri-Y Header

Auto Part #: THY-289Y-C
THY-289Y-C Doug Thorley Headers fits: 1964-1968 Ford Mustang. THY-289Y-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge steel... more

Check Prices

Starting At
$646.00

THY-337Y-C from Doug Thorley Headers

2010 Chevy Camaro Doug Thorley Headers THY-337Y-C Tri-Y Long Tube Header

Auto Part #: THY-337Y-C
THY-337Y-C Doug Thorley Headers fits: 2010 Chevy Camaro. THY-337Y-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge steel... more

Check Prices

Starting At
$678.39

THY-465-L-C from Doug Thorley Headers

2004 Nissan Frontier Doug Thorley Headers THY-465-L-C Long Tube Header

Auto Part #: THY-465-L-C
THY-465-L-C Doug Thorley Headers fits: 2000-2004 Nissan Frontier, 2000-2004 Nissan X-Terra. THY-465-L-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your... more

Check Prices

Starting At
$432.13

THY-515-1-C from Doug Thorley Headers

2011 Toyota Tacoma Doug Thorley Headers THY-515-1-C 3 Into 1 Header Exit

Auto Part #: THY-515-1-C
THY-515-1-C Doug Thorley Headers fits: 2005-2011 Toyota FJ Cruiser, 2005-2011 Toyota Tacoma. THY-515-1-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your... more

Check Prices

Starting At
$357.40

THY-515-LS-C from Doug Thorley Headers

Doug Thorley THY-515-LS-C

Auto Part #: THY-515-LS-C
THY-515-LS-C Doug Thorley Headers fits: 2005-2010 Toyota FJ Cruiser, 2005-2010 Toyota Tacoma. THY-515-LS-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your... more

Check Prices

Starting At
$406.62

THY-542Y-SO-C from Doug Thorley Headers

1984 Toyota Pickup Doug Thorley Headers THY-542Y-SO-C Tri-Y Header

Auto Part #: THY-542Y-SO-C
THY-542Y-SO-C Doug Thorley Headers fits: 1981-1984 Toyota Pickup. THY-542Y-SO-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge... more

Check Prices

Starting At
$446.00

THY-505-C from Doug Thorley Headers

1995 Toyota 4-Runner Doug Thorley Headers THY-505-C 3 Into 1 Header Exit

Auto Part #: THY-505-C
THY-505-C Doug Thorley Headers fits: 1988-1995 Toyota 4-Runner, 1988-1995 Toyota Pickup. THY-505-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle... more

Check Prices

Starting At
$606.95

THY-506Y-C from Doug Thorley Headers

1999 Toyota Tacoma Doug Thorley Headers THY-506Y-C 4 Into 1 Header

Auto Part #: THY-506Y-C
THY-506Y-C Doug Thorley Headers fits: 1995-1999 Toyota Tacoma. THY-506Y-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge steel... more

Check Prices

Starting At
$395.95

THY-214Y-FI from Doug Thorley Headers

1997 Ford F-250 Doug Thorley Headers THY-214Y-FI Tri-Y Header without Connector Pipe

Auto Part #: THY-214Y-FI
THY-214Y-FI Doug Thorley Headers fits: 1988-1997 Ford F-250, 1988-1997 Ford F-350, 1988-1997 Ford F-450/550. THY-214Y-FI Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958.... more

Check Prices

Starting At
$528.95

THY-338-C from Doug Thorley Headers

2011 Chevy Camaro Doug Thorley Headers THY-338-C Shortie Header

Auto Part #: THY-338-C
THY-338-C Doug Thorley Headers fits: 2010-2011 Chevy Camaro. THY-338-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge steel... more

Check Prices

Starting At
$307.00

THY-313-C from Doug Thorley Headers

1972 Chevy El Camino Doug Thorley Headers THY-313-C 4 Into 1 Header

Auto Part #: THY-313-C
THY-313-C Doug Thorley Headers fits: 1966-1972 Chevy El Camino, 1966-1972 Chevy Chevelle. THY-313-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle... more

Check Prices

Starting At
$575.95

THY-336-C from Doug Thorley Headers

2010 Pontiac G8 Doug Thorley Headers THY-336-C Shortie Header

Auto Part #: THY-336-C
THY-336-C Doug Thorley Headers fits: 2008-2010 Pontiac G8, 2008-2010 Chevy Camaro. THY-336-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from... more

Check Prices

Starting At
$539.40

THY-376Y1-C from Doug Thorley Headers

1969 Chevy Camaro Doug Thorley Headers Tri-Y Header

Auto Part #: THY-376Y1-C
Doug Thorley Headers fits: 1967-1969 Chevy Camaro. Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge steel tubing for longevity... more

Check Prices

Starting At
$612.95

THY-470-C from Doug Thorley Headers

Doug Thorley Headers fits: 2005-2009 Nissan X-Terra, 2005-2009 Nissan Pathfinder, 2005-2009 Nissan Frontier, Doug Thorley Headers. Doug Thorley Headers, Doug Thorley Header, Exhaust Headers.

Auto Part #: THY-470-C
Doug Thorley Headers fits: 2005-2009 Nissan X-Terra, 2005-2009 Nissan Pathfinder, 2005-2009 Nissan Frontier. Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for... more

Check Prices

Starting At
$419.95

THY-507-C from Doug Thorley Headers

2004 Toyota 4-Runner Doug Thorley Headers THY-507-C 3 Into 1 Header Exit

Auto Part #: THY-507-C
THY-507-C Doug Thorley Headers fits: 2001-2004 Toyota 4-Runner, 2001-2004 Toyota Tacoma. THY-507-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle... more

Check Prices

Starting At
$639.91

THY-508-C from Doug Thorley Headers

2004 Toyota Tundra Doug Thorley Headers THY-508-C Shortie Header

Auto Part #: THY-508-C
THY-508-C Doug Thorley Headers fits: 2000-2004 Toyota Tundra. THY-508-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge steel... more

Check Prices

Starting At
$518.65

THY-509Y-C from Doug Thorley Headers

2007 Toyota Tacoma Doug Thorley Headers THY-509Y-C Tri-Y Header

Auto Part #: THY-509Y-C
THY-509Y-C Doug Thorley Headers fits: 2005-2007 Toyota Tacoma. THY-509Y-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge steel... more

Check Prices

Starting At
$407.95

THY-542Y-C from Doug Thorley Headers

1984 Toyota Pickup Doug Thorley Headers THY-542Y-C Tri-Y Header

Auto Part #: THY-542Y-C
THY-542Y-C Doug Thorley Headers fits: 1981-1984 Toyota Pickup. THY-542Y-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge steel... more

Check Prices

Starting At
$346.04

THY-542Y-O-C from Doug Thorley Headers

1984 Toyota Pickup Doug Thorley Headers THY-542Y-O-C Tri-Y Header

Auto Part #: THY-542Y-O-C
THY-542Y-O-C Doug Thorley Headers fits: 1981-1984 Toyota Pickup. THY-542Y-O-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge... more

Check Prices

Starting At
$346.04

THY-550Y-C from Doug Thorley Headers

1988 Toyota Pickup Doug Thorley Headers THY-550Y-C Tri-Y Header

Auto Part #: THY-550Y-C
THY-550Y-C Doug Thorley Headers fits: 1984-1988 Toyota Pickup. THY-550Y-C Doug Thorley Headers Features - Doug Thorley Headers have been the cream of the performance exhaust crop since 1958. Custom-made for your vehicle from durable 14-gauge steel... more

Check Prices

Starting At
$417.95