Doug Thorley GM G-Body Tri-Y Headers with Adapters Chevrolet | Buick | Pontiac | Oldsmobile 1978-1988

Make Vehicle	Model	Submodel	Year	Engine	Notes
1978-1987 Buick Regal	Regal		1978-1987
1978-1987 Chevrolet El Camino	El Camino		1978-1987
1978-1983 Chevrolet Malibu	Malibu		1978-1983
1978-1988 Chevrolet Monte Carlo	Monte Carlo		1978-1988

Who is Doug Thorley?

Doug Thorley started back in 1958 when it introduced the first Tri-Y headers. The company specializes in creating performance headers and exhaust systems for the automotive industry. They offer kits for classic cars and modern vehicles as well. Today, they have gained that legendary status and have provided excellent products and services to all its clients worldwide.

Continuous Innovation

Even if they have been in the business for 60 years, the company has never stopped improving its products, going along with the ever-changing technology in the automotive industry. With a better and more advanced manufacturing facility, they are able to maintain the high-quality standard the company has been known for years.

100% Made in the USA

All of Doug Thorley's products are proudly made in the USA. This enables the company to create a product that meets customer expectations. It also allows them to keep the cost at bay, giving the customers a product with the best value for their money.

Unique to Each Vehicle

Every vehicle needs a different header design to maximize the horsepower output. The company’s research and development team ensures that they pay close attention to the smallest detail for them to create a perfect match for a specific vehicle.

Purchase Doug Thorley at Vivid Racing

If you search for quality headers and exhaust for your vehicle, then check out Doug Thorley. With years of experience manufacturing exhaust systems, they are a brand you can trust. Visit Vivid Racing and check out the list of parts specific to your requirements. 

WARRANTY COVERAGE

Unless otherwise specified, Doug Thorley Headers header products are warranted against defective materials and workmanship for as long as the original consumer purchaser owns said header product. Doug Thorley Headers exhaust products, defined as any component "downstream" of a Doug Thorley Headers header product or OE factory exhaust manifolds, are warranted against defective materials and workmanship for a period of 5 years from the original consumer purchase date. These limited warranties are offered solely to the original purchaser, are non-transferrable and proof of purchase is required for any warranty claims.

These warranties shall be limited to the repair, adjustment, and/or replacement of defective parts at the discretion of Doug Thorley Headers. Authorized product(s) returned will be repaired or replaced also at the discretion of Doug Thorley Headers, All warranties become void if any product shows evidence of any modification done without the express consent of Doug Thorley Headers, and includes mishandling, bending, welding, mutilation of parts, and insulating wrap products. Doug Thorley Headers is not responsible for any other expenses involved in a warranty claim, including any labor costs incurred by the customer in relation to defective parts, or shipping cost to or from Doug Thorley Headers. Nor shall Doug Thorley Headers be responsible for any damages, whether consequential, special, contingent or otherwise; or expenses or injury that may arise from the use of Doug Thorley Headers products.

The bluing and discoloration of chrome exhaust products is considered normal, as is the dulling of ceramic coated products, and as such, coatings are not covered under the terms of the warranty. Environmental exposure and rust apparent during the extended life of products is also considered normal and excluded from the warranty. Any Doug Thorley Headers product that has been discontinued from new sales for a period of 5 years or longer will no longer be eligible for replacement under terms of the warranty, the repair of any defective parts will be the only option. Any non-defective not-installed product may be returned for any reason within 30 calendar days of receipt, and will be subject up to a 20% restocking/repackaging fee.