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Flowmaster American Thunder Exhaust System

What Do You Drive? We Will Tell You If It Fits.
Fits your
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Product Information
List Price:
$334.65 - $1,519.27
Our Price:
$255.97 - $1,299.97
Made in the USA
Rating:
4.8 (82 reviews)

Description

  • Constructed out of 16-gauge stainless steel
  • Mandrel bent tubing for maximum flow
  • Tested and proven on dyno to increase performance
  • Louder than stock with a throaty rumble
  • No drilling or welding on most models
  • Limited lifetime warranty
  • Made in the USA - Santa Rosa, CA

Let's face it you love your truck or muscle car and you want it to be noticed and running at its best. Flowmaster American Thunder exhaust systems are one of the best out there with a great sound and power enhancing performance.

Everyone wants their exhaust to sound great, but first things first – it has to boost your engine's performance. Flowmaster exhaust systems are going to allow your engine to more easily emit exhaust fumes by optimizing the travel from engine to tip. Reduce back-pressure and you boost power. Boost power and you go faster.

How does Flowmaster create such great sound from their exhaust kits you ask? The sound is created by a muffler that is manufactured for not just that great "Flowmaster Sound" but for optimal power and mileage. Every exhaust is perfectly designed to work the best with your ride.

The Flowmaster American Thunder exhaust systems come with an aggressive sound. Tubing is constructed out of 16-gauge stainless steel. Each truck and car exhaust system is mandrel bent for an even flow and exit. Flowmaster exhaust systems come complete with muffler, hangers, clamps and tip for easier installation.

Customize your car, truck, or SUV the way you want with application offering a single or dual exit exhaust kit. So what are you waiting for? Get yourself the Flowmaster American Thunder exhaust system today!

View Available Part Numbers For This Product Line

Videos

Watch This Video
Flowmaster American Thunder Cat-back System - 2014-2018 Silverado / Sierra 1500 - PN: 817669
(01:46)
Watch This Video
Flowmaster American Thunder Cat-back 2011-2018 Chevy/GMC Silverado & Sierra 1500 w/ 6.2L V8-817602
(00:55)
Watch This Video
Flowmaster American Thunder Cat-back Exhaust System 2015-2017 Ford F150 3.5L Ecoboost - 817725
(00:58)
Watch This Video
Flowmaster American Thunder Cat-back Exhaust System 2015-2017 Ford F150 3.5L TiVCT - 817725
(01:00)
Watch This Video
Flowmaster American Thunder Cat-back Exhaust System 2009-2017 Toyota Tundra - 817664
(01:19)
Watch This Video
Flowmaster American Thunder Cat-back Exhaust for 2003-2012 Dodge Ram 2500 and 3500 Trucks - 817507
(00:44)
Watch This Video
Flowmaster American Thunder Cat-back Exhaust System 09-14 F-150 4.6L, 5.0L, 5.4L - 817567
(00:49)
Watch This Video
Flowmaster American Thunder Cat-back Exhaust System 2014-2017 Ram 2500 - Part # 817709
(01:00)
Watch This Video
Flowmaster American Thunder Cat-back Exhaust System for 2016 - 2017 Toyota Tacoma 3.5L V6 - 817719
(00:47)
Watch This Video
Flowmaster American Thunder Cat-back System - 10-14 Ford F-150 SVT Raptor 6.2L - 817551
(01:08)
Watch This Video
Flowmaster American Thunder Cat-back System - 13-15 Toyota Tacoma - 817614
(01:08)
Watch This Video
Flowmaster American Thunder Cat-Back System - 2007-2013 Silverado/Sierra 1500 5.3L - PN 817680
(01:16)
Watch This Video
Flowmaster American Thunder Cat-back System - 2011-2016 GM 2500HD & 3500HD - 817541
(01:24)

Review

Product Reviews Summary

Overall
4.8 
Appearance
4.2
Price / Value
3.8
Ease of Installation
4.0
Quality
3.9
82  Customer Reviews
5 Star
67   
4 Star
13   
3 Star
1   
2 Star
0   
1 Star
1   
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Quick easy install
Part #: FLM-817647 Posted on
Was this review helpful?
5.0
- 2013 Dodge Ram 2500 (COLONIE, NY)
Appearance
Price / Value
Ease of Installation
Quality
Everything lined up perfect and it sounds awesome.
Part #: FLM-17375 Posted on
Was this review helpful?
4.0
- 2003 Dodge Ram 1500 (Pittsburgh, PA)
Appearance
Price / Value
Ease of Installation
Quality
Part #: FLM-817709 Posted on
Was this review helpful?
5.0
- 2017 Ram Truck 2500 (Valley Stream, NY)
Part #: FLM-817719 Posted on
Was this review helpful?
5.0
- 2016 Toyota Tacoma (Laurens, NY)
Appearance
Price / Value
Ease of Installation
Quality
Part #: FLM-817726 Posted on
Was this review helpful?
5.0
- Ford F150 (Arendtsville, PA)
Appearance
Price / Value
Ease of Installation
Quality
Part #: FLM-817680 Posted on
Was this review helpful?
5.0
- Chevy Silverado 1500 (Liverpool, PA)
Appearance
Price / Value
Ease of Installation
Quality
Great product
Part #: FLM-817424 Posted on
Was this review helpful?
5.0
- 2006 Dodge Ram 1500 (DISPUTANTA, VA)
Appearance
Price / Value
Ease of Installation
Quality
Everything was as expected. Installation was very easy and instructions were precise. The only thing was I had to go buy a bushing for the driver side hanger because there was a previous dual exhaust installed on my truck. Only suggestion is there could be an extra bushing for the hangers. The sound is great as well and not to much noise inside the cab. Thank you!
Part #: FLM-817523 Posted on
Was this review helpful?
5.0
- 2008 Chevy Silverado 1500 (Erie, PA)
Appearance
Price / Value
Ease of Installation
Quality
Part #: FLM-817477 Posted on
Was this review helpful?
5.0
(Tarawa Terrace, NC)
Appearance
Price / Value
Ease of Installation
Quality
Part #: FLM-17362 Posted on
Was this review helpful?
1.0
- 1999 Chevy Silverado 1500 (Caledonia, MN)
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Warranty

Lifetime Warranty SS / 3 Year Warranty Aluminum

Flowmaster is offering a lifetime limited warranty on their stainless steel exhaust systems and a 3 year limited warranty on the aluminized steel exhausts. The warranty protects you against manufacturing defects in material and workmanship. If you have any questions please call our customer service team at 1-877-216-5446.

PDF Icon Flowmaster Product Warranty

Installation

Flowmaster American Thunder exhuast systems can be installed right at home, if you've got the right tools and equipment. All orders include installation instructions, and those are also available on our website. Welding may be required on some exhaust systems. For additional information please call our customer service team at 1-877-216-5446.