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Doug Thorley
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Exhaust Systems
Doug Thorley
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Doug Thorley Catback Exhaust System - 2 Bolt Flanges, 16 Gauge, Stainless Steel
Part #: 89248
$1,309.45
$1,139.22
For each kit
For each kit
Free Shipping! *to continental U.S. only
Featured Videos
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Video Description:Everything you need to know about exhaust systems is explained on this episode of Andy's Auto Sport TV! We explain what exactly a cat-back exhaust system is, we explain why buying an exhaust system is Step 1 for improving performance, and we give information about how to make a buying decision from all the brands we carry here at Andy's.
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Video Description:Andy's got a chance to sit down with Jamie Joyce from Doug Thorley Headers to find out what makes Doug Thorley such a renowned header manufacturer.
*At 3:16, you can hear information about Doug Thorley's use of the Tri-Y header setup.
*At 4:58, they talk about their lifetime warranty, and what exactly about their products enables Doug Thorley to be able to offer such a strong warranty.
*At 6:10 you can hear what they say about the quality control procedures they put every single header through.
*At 7:20 Doug Thorley enthusiastically endorses Andy's Auto Sport as a great partner!
Fits On:
99-05 Lexus LX470, 99-05 Toyota Land Cruiser 100-Series
Description:
Exhaust Style: Cat-back Exhaust System
Exhaust Outlet Location: Original factory location
Material: Stainless Steel
Finish: Natural
Weld Up: No
Inlet Tube Diameter: Dual 2-1/4"
Tailpipe Tube Diameter: 2-1/2"
Tube Gauge: 16 Gauge
Inlet Attachment: 2 Bolt Flange
Flange Thickness: 3/8"
Hardware Included: Yes
Gaskets Included: No
Exhaust Tip Included: No
Catalytic Converter(s) Included: Not Required
CARB E.O. #: NOT REQUIRED
Warranty: 5 year limited to original purchaser
Notes: This quality cat-back exhaust system utilizes their stainless steel straight thru performance muffler for maximum performance while directing sound out of the exhaust pipe instead of into the cab of your vehicle. There is no better complement to their headers that their performance exhaust system.
Exhaust Style: Cat-back Exhaust System
Exhaust Outlet Location: Original factory location
Material: Stainless Steel
Finish: Natural
Weld Up: No
Inlet Tube Diameter: Dual 2-1/4"
Tailpipe Tube Diameter: 2-1/2"
Tube Gauge: 16 Gauge
Inlet Attachment: 2 Bolt Flange
Flange Thickness: 3/8"
Hardware Included: Yes
Gaskets Included: No
Exhaust Tip Included: No
Catalytic Converter(s) Included: Not Required
CARB E.O. #: NOT REQUIRED
Warranty: 5 year limited to original purchaser
Notes: This quality cat-back exhaust system utilizes their stainless steel straight thru performance muffler for maximum performance while directing sound out of the exhaust pipe instead of into the cab of your vehicle. There is no better complement to their headers that their performance exhaust system.
You ever notice know how when car people talk about their engines, and then one of them mentions headers, the next question seems to always be, "Are they Tri-Y headers?" You can blame Doug Thorley Headers for that one. Not only did the company invent the Tri-Y header design way back in 1958, which allows spent gasses to escape much more efficiently, it has also been designing and manufacturing many other exhaust components for more than 50 years! Another reason to look into Doug Thorley Headers: they are still made in the U.S.A. Oh, and did we mention that every header that Doug Thorley Headers produces is C.A.R.B.-approved? Californians rejoice!
Q: Does a cat-back exhaust come with a catalytic converter?
A: No, "cat-back" actually means from the rear of the catalytic converter back, so it will include everything after the converter, but not the converter itself.
Q: What exactly does "cat-back" mean when people say "cat-back exhaust"?
A: Many performance exhaust systems are also referred to as cat-back exhausts. Cat-back means that the exhaust piping starts from your catalytic converter and runs back all the way to the exhaust tip(s).
Q: How do you install an exhaust system?
A: Exhaust systems are installed using the supplied hardware, which includes gaskets and high grade bolts. This is truly a bolt-on procedure and most exhaust systems are an exact fit with no modifications needed. For this reason, getting a performance exhaust system is normally considered one of the easiest ways to gain noticeable horsepower for your car.
Q: What does an ehaust system do? Why buy an exhaust system?
A: A performance exhaust system is used to increase horsepower for your car by allowing exhaust gases to pass through your exhaust system with less backpressure and less resistance. Larger-diameter piping is normally used, depending on the application, in order to gain more horsepower and torque levels throughout the power band. A performance exhaust system can be the most cost-effective modification you can do to get more horsepower out of your car, not to mention that it will give your car a deeper more aggressive sound. And depending on the brand, performance exhaust systems normally include gorgeous new mufflers that add a great appearance to your car.
A: No, "cat-back" actually means from the rear of the catalytic converter back, so it will include everything after the converter, but not the converter itself.
Q: What exactly does "cat-back" mean when people say "cat-back exhaust"?
A: Many performance exhaust systems are also referred to as cat-back exhausts. Cat-back means that the exhaust piping starts from your catalytic converter and runs back all the way to the exhaust tip(s).
Q: How do you install an exhaust system?
A: Exhaust systems are installed using the supplied hardware, which includes gaskets and high grade bolts. This is truly a bolt-on procedure and most exhaust systems are an exact fit with no modifications needed. For this reason, getting a performance exhaust system is normally considered one of the easiest ways to gain noticeable horsepower for your car.
Q: What does an ehaust system do? Why buy an exhaust system?
A: A performance exhaust system is used to increase horsepower for your car by allowing exhaust gases to pass through your exhaust system with less backpressure and less resistance. Larger-diameter piping is normally used, depending on the application, in order to gain more horsepower and torque levels throughout the power band. A performance exhaust system can be the most cost-effective modification you can do to get more horsepower out of your car, not to mention that it will give your car a deeper more aggressive sound. And depending on the brand, performance exhaust systems normally include gorgeous new mufflers that add a great appearance to your car.
If you live in California, please note this item may be subject to a Proposition 65 warning. Click here to learn more.
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