Doug Thorley Single Exit Exhaust System

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Features

  • Doug Thorley Cat-Back Exhausts offer the fastest, easiest route to extra kickin' horsepower from your ride
  • Custom-made from flange to tip for your specific year, make, model and sub-model
  • Doug Thorley Cat-Back Exhausts employ CNC mandrel-bent 16-gauge aluminized steel tubing for restriction-free exhaust flow
  • Integrated factory-style hangers make installation a straightforward and satisfying project
  • Doug Thorley Cat-Back Exhausts utilize Thorley's exclusive Aeroflow maximum performance muffler
  • Adds a gutty exhaust sound that performance enthusiasts crave
  • Doug Thorley Cat-Back Exhaust Systems are capped with a gleaming chrome exhaust tip
  • Your Doug Thorley Cat-Back Exhaust System is covered by a Lifetime Warranty for the original owner

Description

Doug Thorley Headers have been making performance exhaust power simple since 1958. Now, with their fresh line of Doug Thorley Cat-Back Exhausts, extra tire-spinning ponies have never been easier to add to any vehicle.

Doug Thorley Cat-Back Exhausts know the quickest route to extra power: quality materials, top-end engineering and a premium fit. All pipes are 16-gauge aluminized steel tubing that's CNC mandrel-bent to eliminate backpressure. Free-flowing exhaust jets through a premium Thorley Aeroflow muffler for power and a manly exhaust rumble.

Doug Thorley Cat-Back Exhausts fit perfectly and look great, too. Integrated factory-style hangers make for simple installation. In fact, most systems require no cutting or welding. And, each exit pipe is topped by a premium chrome exhaust tip. Your Doug Thorley Cat-Back Exhaust boasts a Lifetime Warranty to the original owner, too.

Easy power makes your performance exhaust choice easy: install a Thorley!

Average Customer Rating

  (43)
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Ease of Installation Ease of Installation
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Good exhaust for the money

Posted on 03/05/2009 by Jason S. - 2004 Nissan Armada (Plantsville,CT)

Appearance
Ease of Installation
Price/Value
Quality

"Exhaust installed easy, and looks and sounds good. Not too loud, but a nice throaty tone. I wish the exhaust came straight out from under the vehicle, instead of using a chrome tip."

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About Jason S.
Vehicle
2004 Nissan Armada
 
Too quite

Posted on 03/19/2008 by David G. (Lebanon,CT)

5 of 8 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Bought a "performance exhaust" for a low rumble exhaust sound. Not a bad system, but only a bit louder than a factory exhaust (disappointed)."

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About David G.
 
Gives my Liberty a whole new attitude...

Posted on 10/03/2007 by Ryan L. - 2002 Jeep Liberty (Bedford,PA)

4 of 4 people found the following review helpful.

"Overall, I am very pleased with this product for my 2002 Jeep Liberty, however I did have a few issues. First the product I received does have the "Doug Thorley" brand name on it or on any of the documentation, I had to do some research to find out the Jardine product I received and Doug Thorley are one in the same. The only other problem I had was that the fit was a little tight, I had to modify my bumper cover to make the new tip fit and I had to trim a hanger to eliminate a vibration. But now it’s on and paired with a AEM Brute Force cold air intake I am very happy with the new look, sound and performance of my Jeep. This is my Second purchase from AutoAnything.com and I will buy again."

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About Ryan L.
Vehicle
2002 Jeep Liberty
I use my vehicle for
commuting, travel
 
Easy Install, Great Value

Posted on 09/28/2007 by Jeremy P. - 1998 Toyota 4Runner (Rockville,MD)

3 of 3 people found the following review helpful.

"Got this because someone cut out my cat and I decided to replace the whole system. Matched it with an Eastern Catalytic Converter and I am very happy. The exhaust installed so easily I couldnt believe I thought about paying somebody to do it. The Catalytic Converter was another story.... It is fairly loud in and out but its not "ricer" sounding, its quality and I enjoy it. Definitely louder than stock and might not be the best fit unless you want the added noise. I am very pleased with this purchase! I noticed that after I bought it, they jacked up the price. However, I would still buy it at this price compared to twice as much for competitive brands."

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About Jeremy P.
Vehicle
1998 Toyota 4Runner
I use my vehicle for
Everything
 
Bad ass!

Posted on 09/25/2007 by John F. - 2003 Toyota 4Runner (Woodside,NY)

1 of 3 people found the following review helpful.

"Easy to install, sounds throaty and solid! Bad ass exhaust. Best bang for the buck. Very pleased with this product!"

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About John F.
Vehicle
2003 Toyota 4Runner
I use my vehicle for
Snowboarding and Mt. Biking in VT.
 
Pretty happy with the purchase

Posted on 08/25/2007 by David S. - 1991 Ford Bronco (Franklin,IN)

2 of 2 people found the following review helpful.

"It is very quiet, yet seems not to have lost any power over the noisy Midas Ravin system it replaced. Installation was easy, once I got the old system out. Nice mandrel bemds and nice chrome tip. Hangers line up perfectly, but the rip hangs a little lower than I'd like. I'll probably modify it to bring it up closer to the body. They should state somewhere that Doug Thorley and Jardine are one and the same. The box didn't say Doug Thorley anywhere on it, and I thought it was a mistake. I also didn't find any fine print or warranty info other than the "Lifetime guarantee" listed on this site. I did call to verify this, but We'll see if I have a fight in a few years if it starts rusting."

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About David S.
Vehicle
1991 Ford Bronco
I use my vehicle for
Commuting, hauling kids, dogs and everything else.
 
Good Exhaust System

Posted on 08/16/2007 by Stephen S. (Eugene,OR)

1 of 1 people found the following review helpful.

"As mentioned in earlier reviews, the system is simple to install and sounds good, but it would be nice if the gasket from the catalytic converter was included. Also, on my 95 Toyota X-cab, the flared tip was a little loud. I picked up a chrome tip along with a gasket. PROBLEM SOLVED!! Overall, I would recommend the system."

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About Stephen S.
I use my vehicle for
commuting and various trips.
 
98 Tacoma 4x4 standard cab

Posted on 08/13/2007 by Joseph C. - 1998 Toyota Tacoma (Hobbs,NM)

4 of 4 people found the following review helpful.

"The system was really easy to install, about an hour and a half. It sounds good, not to loud, but definitely noticeable. I do not know if it helped power or gas mileage, but I am very happy with it. I will probably get one for my 90 Toyota truck. The only problem I had was with the gasket. I was prepared for that after reading other reviews before I made the purchase. Like the other reviews, I went to the local parts store and got a gasket and it worked fine."

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About Joseph C.
Vehicle
1998 Toyota Tacoma
I use my vehicle for
everything
 
diappointed

Posted on 08/07/2007 by Dennis Z. - 1995 Ford Bronco (Naperville,IL)

2 of 4 people found the following review helpful.

"The system went on fairly easy and it sounds good, however I was disappointed by the pipe fitting inside the muffler outlet and the clamp on chrome tip that we had to tack weld on. Poor design for such an icon in the industry."

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About Dennis Z.
Vehicle
1995 Ford Bronco
 
doug thorley catback exhaust

Posted on 08/04/2007 by Clyde B. - 2003 Chevy S10 Pickup (Semmes,AL)

2 of 3 people found the following review helpful.

"My exhaust was a little harder to put on because thorley had to send me a new flange to bolt to converter,once I cut old one off everything fit great,good sound I'LL USE THEM AGAIN."

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About Clyde B.
Vehicle
2003 Chevy S10 Pickup
I use my vehicle for
A LITTLE OF EVERYTHING