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Flowmaster American Thunder Exhaust System

What Do You Drive? We Will Tell You If It Fits.
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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 (71 reviews)

Description

  • Constructed out of 16-gauge stainless steel
  • Mandrel bent tubing for maximum flow
  • Tested and proven on dyno to increase performance
  • 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 Video2011 Dodge Dakota - Flowmaster Force II Cat-back Exhaust System - PN 817520
(01:20)
Watch This VideoFlowmaster American Thunder Cat-back System - 2014-2017 Silverado / Sierra 1500 - PN: 817669
(01:46)
Watch This VideoFlowmaster American Thunder Cat-back 2011-2017 Chevy/GMC Silverado & Sierra 1500 w/ 6.2L V8-817602
(00:55)
Watch This VideoFlowmaster American Thunder Cat-back Exhaust System 2015-2017 Ford F150 3.5L Ecoboost - 817725
(00:58)
Watch This VideoFlowmaster American Thunder Cat-back Exhaust System 2015-2017 Ford F150 3.5L TiVCT - 817725
(01:00)
Watch This VideoFlowmaster American Thunder Cat-back Exhaust System 2009-2017 Toyota Tundra - 817664
(01:19)
Watch This VideoFlowmaster American Thunder Cat-back Exhaust for 2003-2012 Dodge Ram 2500 and 3500 Trucks - 817507
(00:44)
Watch This VideoFlowmaster American Thunder Cat-back Exhaust System 09-14 F-150 4.6L, 5.0L, 5.4L - 817567
(00:49)
Watch This VideoFlowmaster American Thunder Cat-back Exhaust System 2014-2016 Ram 2500 - 817709
(01:00)
Watch This VideoFlowmaster American Thunder Cat-back Exhaust System for 2016 - 2017 Toyota Tacoma 3.5L V6 - 817719
(00:47)
Watch This VideoFlowmaster American Thunder Cat-back System - 10-14 Ford F-150 SVT Raptor 6.2L - 817551
(01:08)
Watch This VideoFlowmaster American Thunder Cat-back System - 13-15 Toyota Tacoma - 817614
(01:08)
Watch This VideoFlowmaster American Thunder Cat-Back System - 2007-2013 Silverado/Sierra 1500 5.3L - PN 817680
(01:16)
Watch This VideoFlowmaster 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
4.0
71  Customer Reviews
5 Star
59   
4 Star
11   
3 Star
1   
2 Star
0   
1 Star
0   
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Part #: FLM-817477 Posted on
Was this review helpful?
5.0
(Tarawa Terrace, NC)
Appearance
Price / Value
Ease of Installation
Quality
Part #: FLM-817642 Posted on
Was this review helpful?
5.0
(Lancaster, CA)
Appearance
Price / Value
Ease of Installation
Quality
Part #: FLM-817706 Posted on
Was this review helpful?
5.0
- 2011 Chevy Silverado 1500 (Brookville, PA)
Great sound, bad engineering
Part #: FLM-817725 Posted on
Was this review helpful?
5.0
- 2016 Ford F150 (Naples, FL)
Appearance
Price / Value
Ease of Installation
Quality
This exhaust sounds great but the bands that hold it all together are terrible. Leaks air like crazy and ended up paying $80 more to have it welded.... Be prepared to have this done. Once its welded it sounds awesome and please with sound! Prob would have it fabrivated with same muffler for $200-300 cheaper next time. Just my two cents!
Part #: FLM-817697 Posted on
Was this review helpful?
5.0
- 2015 Chevy Camaro (Ozark, MO)
Appearance
Price / Value
Ease of Installation
Quality
ORDER was shipped on time, quality was great and the ease of how everything fit was right on mark, overall the experience was a 5 thanks.
2009 FORD
Part #: FLM-817478 Posted on
Was this review helpful?
5.0
- 2009 Ford F150 (SAN ANTONIO, TX)
Appearance
Price / Value
Ease of Installation
They sound great. Instillation was easy and everything fit. The only problem was with the clamps! Had the same problem others has talked about. Clamps would not tighten enough to hold pipes secure. Used a impact wrench and bottomed out the threads and they still would not hold. After taking them off three times finally gave up trying to make them work went and bought regular muffler clamps. The ones they send are not cheep clamps but just will not compress the split on the end of the pipe. I'm 70 yo and installed them by myself on the ground (no lift) The hard part is trying to get the old tail pipe out without cutting it. If your on a lift no problem. I finally cut it to get it out. Other then the clamp problem a smooth and simple install. Watch the video of the installation before hand its on their site.
Part #: FLM-817664 Posted on
Was this review helpful?
5.0
- 2016 Toyota Tundra (Oradell, NJ)
Appearance
Price / Value
Ease of Installation
Quality
Flow master exhaust
Part #: FLM-817397 Posted on
Was this review helpful?
5.0
- 2005 Dodge Ram 1500 (Kenvil, NJ)
Appearance
Price / Value
Ease of Installation
Quality
This was a surprise for my son while he was away at bootcamp. The replacement fit was perfect, was actually finished in a couple hours, delivery was prompt and it looks and sounds great. The only disappointment was that while we were delivering his truck to his duty station I missed the rebate opportunity ...I didn't realize that it was time sensitive
Part #: FLM-817699 Posted on
Was this review helpful?
5.0
- 2016 Ram Truck 2500 (Roseville, MI)
Appearance
Price / Value
Ease of Installation
Quality
Sounds great
Flowmaster Exhaust
Part #: FLM-817669 Posted on
Was this review helpful?
5.0
- 2017 GMC Sierra 1500 (Coxsackie, NY)
Appearance
Price / Value
Ease of Installation
Quality
very pleased fit like a glove the fit was great and very easy to install . Sounds great as well
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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.