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*** NOTE: Not legal for use on pollution-controlled motor vehicles. For off-road use only.The use of long tube headers with aftermarket cats, powerflo-x,hpipe,xpipe crossover pipes with or without aftermarket cats or aftermarket cats are illegal for installation and use on emission-legal vehicles when operated on public streets or highways. They can only be legally used while participating in sanctioned motorsports racing events.
History and information about Doug Thorley Headers and their products.
DOUG THORLEY HEADERS, an "all American made" company, has been in business for 50 years producing some of the world's best headers. DOUG THORLEY HEADERS is world famous for the invention of the tri-y header and for ease of installation. DOUG THORLEY HEADERS also introduced a new line of hdx –series of headers that are super heavy duty and specifically designed for those who have motor homes, trucks and off road vehicles that are susceptible to extreme conditions. DOUG THORLEY HEADERS also produces the finest SANRAIL header-exhaust available anywhere.
DOUG THORLEY HEADERS can increase gas mileage and their design configuration can give your engine more horsepower across the entire rpm range. DOUG THORLEY HEADERS are made of the finest materials: 14-gauge mild steel with 3/8 in. thick flanges and 5/16 in. collector rings and with a nickel chrome plated finish for a great look. DOUG THORLEY HEADERS have an O-ring welded into the flange and a high-temperature gasket to prevent leaks.
LMPerformance.com carries DOUG THORLEY HEADERS, DOUG THORLEY SHORT HEADERS, DOUG THORLEY EXHAUST SYSTEMS, and DOUG THORLEY Y-PIPES for your Buick, Chevy, Ford, GMC, Hummer,Infinity, Jeep, Kia, Lexus, Nissan, Pontiac, Suzuki and Toyota at a very competitive price and, of course with the customer service you deserve.
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