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Flowmaster American Thunder Exhaust System

Flowmaster American Thunder Exhaust System
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The Flowmaster Dual Rear Exit system is designed for the person who wants the custom look of a dual exhaust on a late model vehicle that came with a factory single exhaust. These systems feature mandrel bent 16 gauge aluminized steel tubing, either weld-on or flanged inlet pipe(s), specially tuned muffler, clamps, hangers and stainless steel exhaust tips for the aggressive look and sound of a dual exhaust system. The Flowmaster Dual Side Exit Exhaust systems are designed for truck and SUVs that originally came equipped with a single exhaust. These systems feature mandrel bent 16 gauge aluminized steel tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tips for that aggressive look and sound of a dual exhaust system. These Flowmaster kits are perfect for owners looking for a custom, aggressive look and sound, yet still want to tow. The Flowmaster Muscle Truck Exhaust systems are designed to give your late model truck the custom look of a NASCAR race truck. These "Muscle Truck" systems feature mandrel bent 16 gauge aluminized steel tubing custom bent to fit your vehicle, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tips exiting in front of the rear wheel for that aggressive look and sound of a dual exhaust race vehicle. The Flowmaster Single Rear Exit system is for the person who wants a subdued but custom look, with all the benefits of a Flowmaster exhaust system. These systems feature mandrel bent 16 gauge aluminized steel tubing, either weld-on or flanged inlet pipe(s), specially tuned muffler, clamps, hangers and stainless steel exhaust tip exiting in the factory location either under the bumper, or through the valance at the rear of the vehicle. The Flowmaster Single Side Exit Exhaust is for Truck and SUV owners looking for a subdued, but custom look, with the distinct Flowmaster sound and increased performance. These systems feature mandrel bent 16 gauge aluminized steel tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tip exiting in the factory location out the side behind the rear tire of the vehicle. All Flowmaster systems feature that distinctive sound that has made Flowmaster the world renowned among enthusiasts.
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Flowmaster 17104 Header-back System - Dual Rear Exit - American Thunder - Moderate Sound
Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Rear Exit
Note: heat shield: Special
Note: inlet diameter (inches): 2.50
Note: material: Aluminized Steel
Note: muffler part number: 42585
Note: muffler quantity: 1
Note: muffler series: 80 Series Crossflow
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Moderate Sound
Note: system type: Header-back System
Note: tip quantity: None
Note: tubing diameter (inches): 2.50
Retail Price: $760.99
Sale Price:
$580.95
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Rear Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.50
Note: material: Aluminized Steel
Note: muffler part number: Kit Only
Note: muffler quantity: 2
Note: muffler series: Super 44 Series
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Moderate Sound
Note: system type: Cat-back System
Note: tip quantity: None
Note: tubing diameter (inches): 2.50
Retail Price: $570.99
Sale Price:
$416.94
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Rear Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.50
Note: material: Aluminized Steel
Note: muffler part number: Kit Only
Note: muffler quantity: 2
Note: muffler series: Super 44 Series
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Aggressive Sound
Note: system type: Cat-back System
Note: tip quantity: None
Note: tubing diameter (inches): 2.50
Retail Price: $570.99
Sale Price:
$435.95
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Rear Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.50
Note: material: Aluminized Steel
Note: muffler part number: Kit Only
Note: muffler quantity: 2
Note: muffler series: Super 44 Series
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Aggressive Sound
Note: system type: Cat-back System
Note: tip quantity: None
Note: tubing diameter (inches): 2.50
Retail Price: $585.99
Sale Price:
$449.95
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Rear Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.25
Note: material: Aluminized Steel
Note: muffler part number: Kit Only
Note: muffler quantity: 2
Note: muffler series: Super 50 Series
Note: outlet diameter (inches): 2.25
Note: single dual: Dual
Note: sound level: Moderate Sound
Note: system type: Cat-back System
Note: tip diameter (inches): 2.25
Note: tip quantity: 2
Note: tubing diameter (inches): 2.25
Retail Price: $905.99
Sale Price:
$664.99
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Rear Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.50
Note: material: Aluminized Steel
Note: muffler part number: 952548
Note: muffler quantity: 2
Note: muffler series: Super 40 Series
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Moderate/Aggressive Sound
Note: system type: Header-back System
Note: tip quantity: None
Note: tubing diameter (inches): 2.50
Retail Price: $720.99
Sale Price:
$550.95
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Flowmaster 17120 Header-back System - Dual Side Exit - American Thunder - Moderate/Aggressive
Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Side Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.50
Note: material: Aluminized Steel
Note: muffler part number: 52558
Note: muffler quantity: 2
Note: muffler series: Super 50 Series
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Moderate/Aggressive Sound
Note: system type: Header-back System
Note: tip diameter (inches): 3.00
Note: tip quantity: 2
Note: tubing diameter (inches): 2.50
Sale Price:
$569.95
Shipping: Free!
No Reviews. Review This Item.

Flowmaster 17129 Header-back System - Dual Side Exit - American Thunder - Aggressive Sound
Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Side Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.50
Note: material: Aluminized Steel
Note: muffler part number: 942546
Note: muffler quantity: 2
Note: muffler series: Super 44 Series
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Moderate/Aggressive Sound
Note: system type: Header-back System
Note: tip quantity: None
Note: tubing diameter (inches): 2.50
Retail Price: $630.99
Sale Price:
$481.95
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Rear Exit
Note: heat shield: None
Note: inlet diameter (inches): 3.00
Note: material: Aluminized Steel
Note: muffler part number: 43083
Note: muffler quantity: 1
Note: muffler series: 80 Series Crossflow
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Aggressive Sound
Note: system type: Cat-back System
Note: tip quantity: None
Note: tubing diameter (inches): 2.50
Retail Price: $570.99
Sale Price:
$399.95
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Retail Price: $440.99
Sale Price:
$237.59
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Flowmaster 17139 Header-back System - Dual Rear Exit - American Thunder - Moderate/Aggressive
Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Rear Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.50
Note: material: Aluminized Steel
Note: muffler part number: 942546
Note: muffler quantity: 2
Note: muffler series: Super 44 Series
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Moderate/Aggressive Sound
Note: system type: Header-back System
Note: tip diameter (inches): 2.50
Note: tip quantity: 2
Note: tubing diameter (inches): 2.50
Retail Price: $741.99
Sale Price:
$549.95
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: 2WD/4WD: 2WD/4WD
Note: exhaust series: American Thunder
Note: exit position: Single Side Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.50
Note: material: Aluminized Steel
Note: muffler part number: 52557
Note: muffler quantity: 1
Note: muffler series: Super 50 Series
Note: outlet diameter (inches): 2.50
Note: single dual: Single
Note: sound level: Moderate Sound
Note: system type: Cat-back System
Note: tip quantity: None
Note: tubing diameter (inches): 2.50
Sale Price:
$284.95
Shipping: Free!

Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Rear Exit
Note: heat shield: None
Note: inlet diameter (inches): 3.00
Note: material: Aluminized Steel
Note: muffler part number: 43083
Note: muffler quantity: 1
Note: muffler series: 80 Series Crossflow
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Aggressive Sound
Note: system type: Cat-back System
Note: tip quantity: None
Note: tubing diameter (inches): 2.50
Retail Price: $533.99
Sale Price:
$399.95
Shipping: Free!
Usually ships within 72 hours. Details:

Retail Price: $478.99
Sale Price:
$255.36
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Flowmaster 17149 Header-back System - Dual Rear Exit - American Thunder - Moderate/Aggressive
Note: 2WD/4WD: 2WD
Note: exhaust series: American Thunder
Note: exit position: Dual Rear Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.50
Note: material: Aluminized Steel
Note: muffler part number: 932556
Note: muffler quantity: 2
Note: muffler series: 50 Series Delta Flow
Note: outlet diameter (inches): 2.50
Note: single dual: Dual
Note: sound level: Moderate/Aggressive Sound
Note: system type: Header-back System
Note: tip diameter (inches): 2.50
Note: tip quantity: 2
Note: tubing diameter (inches): 2.50
Retail Price: $825.99
Sale Price:
$599.95
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: 2WD/4WD: 2WD/4WD
Note: exhaust series: American Thunder
Note: exit position: Single Side Exit
Note: heat shield: None
Note: inlet diameter (inches): 2.25
Note: material: Aluminized Steel
Note: muffler part number: 52455
Note: muffler quantity: 1
Note: muffler series: Super 50 Series
Note: outlet diameter (inches): 2.25
Note: single dual: Single
Note: sound level: Moderate Sound
Note: system type: Cat-back System
Note: tip quantity: None
Note: tubing diameter (inches): 2.25
Retail Price: $397.99
Sale Price:
$278.08
Shipping: Free!
Usually ships within 72 hours. Details:
No Reviews. Review This Item.

Note: 2WD/4WD: 2WD/4WD
Note: exhaust series: American Thunder
Note: exit position: Single Side Exit
Note: heat shield: None
Note: inlet diameter (inches): 3.00
Note: material: Aluminized Steel
Note: muffler part number: 53058
Note: muffler quantity: 1
Note: muffler series: Super 50 Series
Note: outlet diameter (inches): 3.00
Note: single dual: Single
Note: sound level: Moderate Sound
Note: system type: Cat-back System
Note: tip quantity: None
Note: tubing diameter (inches): 3.00
Retail Price: $445.99
Sale Price:
$340.95
Shipping: Free!
Usually ships within 72 hours. Details:

Product Reviews
5 out of 5 stars flow master exhaust
Review for: Header-back System - Dual Rear Exit - American Thunder - Aggressive Sound
From slatington pa. Reviewer: From A Customer   Own this product - Yes
this is the best system I have found on the market. it has a very good sound and a good price it was also very easy to install on my car. I am very pleased with your product and will tell on my freinds about it.
5 out of 5 stars awesome
Review for: Cat-back System - Dual Rear/Side Exit - American Thunder - Moderate Sound
From wyoming Reviewer: Justin Barrett   Own this product - Yes
This exaust system is worth it. Sounds good and looks good, performance and fuel milage are up a little. Had a little problem with getting the spare tire but no big deal.
5 out of 5 stars FLOWMASTER
Review for: Cat-back System - Single Side Exit - American Thunder - Moderate Sound
From new jersey Reviewer: From A Customer   Own this product - Yes
EVERYTHING FIT PERFECT AND THE SOUND IS GREAT
5 out of 5 stars Very pleased
Review for: Cat-back System - Dual Rear/Side Exit - American Thunder - Moderate/Aggressive
From NJ Reviewer: Albert Sherretta   Own this product - Yes
My order arrived when it was supposed to. It was easy to install and I am happy with the end result. This site was easy to shop from and the shipping time was good. I would recommend this website and product to others.
5 out of 5 stars Exhaust made Easy
Review for: Cat-back System - Dual Rear Exit - American Thunder - Moderate Sound
From Kansas Reviewer: From A Customer   Own this product - Yes
This was my first cat-back installation, and this Flowmaster kit was simple and easy. The instructions included in the kit simplified not only the installation, but the removal of my old exhaust has well. The real treat came after the installation was completed, when we started the car. Minimal sound at idle, but then she sings when the RPMs are bumped up. Thanks for a great kit!
4 out of 5 stars Great Sound
Review for: Cat-back System - Dual Rear/Side Exit - American Thunder - Mild/Moderate Sound
From Tennessee Reviewer: Charles Franklin   Own this product - Yes
Installation took less than an hour. Sounds Great and looks good as well. I found using a torque wrench on the clamps helpful. I had one pipe vibrate loose and had to reconnect it to the muffler. I put all clamps to 45ft-lbs on pipe to pipe connections and 55ft-lbs on muffler to pipe connections. It seems to be the most torque that can be applied without collapse of the pipe. If anything comes loose now, i will have the system welded.
5 out of 5 stars Weak clamps
Review for: Cat-back System - Dual Rear/Side Exit - American Thunder - Moderate/Aggressive
From WV Reviewer: Daniel Jack   Own this product - Yes
The exhaust is great, but the clamps that come with the kit are weak. If the connections are not welded, you will need to spend the extra money for better clamps.
4 out of 5 stars Eh...
Review for: Cat-back System - Dual Rear/Side Exit - American Thunder - Moderate Sound
From VA Reviewer: Joseph McCauley   Own this product - Yes
Not too hard of an install. Cut off the orig exhaust easily and everything bolted on nice. Wish it had just a little more rumble to it and the stainless steel tips are pretty weak looking. Not as big as I had hoped for nor are they the style I thought I would be getting. Other than that not too shabby
5 out of 5 stars flowmater cat back duel exhaust
Review for: Cat-back System - Dual Rear/Side Exit - American Thunder - Moderate/Aggressive
From waterbury ct 06708 Reviewer: From A Customer   Own this product - Yes
great service fast shipping great product easy install sounds good big difference in performance
5 out of 5 stars Great Exhaust System
Review for: Cat-back System - Dual Rear/Side Exit - American Thunder - Moderate Sound
From LRAFB Reviewer: From A Customer   Own this product - Yes
sounds awesome. easy to install. highly reccomend welding. would reccomend to anyone.
Some of the reviews may have been edited by our moderators in order to comply with our review guidelines.