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Doug Thorley Headers

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  • $299.00 - $1,325.00
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    Features

    Description

    It was the late 1950s, during the golden era of hot rods, when Doug Thorley crafted his plans for the highest quality headers on the block. Fine tuning, superior craftsmanship and unmatched attention to detail helped Doug Thorley Headers power street racers everywhere.

    Now 50 years later, Doug Thorley Headers are built with the same mission in mind: amping-up the power of your street ride. Thorley Headers use one of three souped-up designs: a unique Tri-Y setup that roars from idle up to 4500 RPM; shortie headers for ease of installation and smog compliance; and long tube headers that specialize in mid to high RPM power.

    Because they're setup for the streets, Thorley Headers also feature the hardware and custom flanging to be 50-state smog legal (some shortie applications). Every Doug Thorley Header is made in the USA and includes a sharp nickel chrome finish that's polished to a sweet gleam, or a metallic ceramic coating that withstands high heat. And, your Doug Thorley Headers carry a Lifetime Warranty for the original owner.

    Thanks to the Magnuson Moss Warranty Act: US Code – Title 15, Chapter 50, Sections 2301-2312, your vehicle’s factory warranty is protected by law when you add aftermarket parts.  Details

    Doug Thorley Headers Customer Reviews

    Average Rating

    91 Customer Reviews

    I love these headers!

    Reviewed by Larry E (Riverside, CA) Reviewed for a 1997 Toyota Tacoma — Thursday at 9:36 PM

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    This was one of the first big mods i did to my 97 tacoma and i am so happy with the result. i added a gibson cat back and the truck sounds like a beast.

    5.3 2013 Silverado

    Reviewed by Clinton f (JONESBOROUGH, TN) Reviewed for a 2013 Chevy Silverado — Jul 25, 2016 9:01 PM

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    I play proball and my buddy on my team has the doug thorley longtubes on his 09 6.2 silverado and he talked about it helping more with Power than even his Tuner. He wasn't lying. As far as installation goes. Just take your time and do it right. Take a day and do it right and it's not bad at all. Once you get the stock headers off putting the new ones on is not bad. Use PB blaster to loosen old headers. Much easier after

    Amazing - very satisfied.

    Reviewed by Robert W (CAMARILLO, CA) Reviewed for a 1998 Toyota Tacoma — Jul 13, 2016 5:14 PM

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    I have put on several sets of headers over the years and it has always been a fight. My stock toyota manifold had cracked into two pieces and I had the choice of spending the same amount of money on a manifold from toyota or the headers. I opted for the headers and the install was actually easier than the removal. I would have never guessed that it would be that straight forward. Performance it seems that my mileage is up slightly and the engine rev's more freely up to the 6000+ RPM range.

    Easy installation, increased performance

    Reviewed by Charles K (NAZARETH, PA) Reviewed for a 2004 Toyota Land Cruiser — Jun 04, 2016 2:09 PM

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    These headers are worth the money, especially if you're lifted. Brings back the performance lost from big tires and heavy bumpers.

    09 Silverado 6.2L

    Reviewed by Zebulon S (BETHANY, OK) Reviewed for a 2009 Chevy Silverado — Mar 19, 2016 12:01 PM

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    Pros: Great quality, easy to install if you know what you're doing, added power, sound. Fit 6.2 Cons: better check bolts after driving it repeatedly cause they aren't locker nuts and they come loose easy, had three bolts come off in first week. Needs better directions, Have to get the y pipe welded At a muffler shop Overall, great headers and great quality - made is USA