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Flowmaster American Thunder Exhaust System 817669

Product Information
List Price:
$1,017.69
Our Price:
$778.54
Rating:
4.8 (8 reviews)
Part #:
817669
UPC:
700042030033
Type:
Cat-Back
Exit:
Dual Side or Rear Exit
Exhaust Material:
Stainless Steel
Configuration:
Pipe Size: 2.5" | 3.5" Stainless Tips
Applications:
  • Includes Super 40 Series muffler
  • Exhaust system will produce a moderate-aggressive tone

Description

  • Available in T-409 stainless steel and 16-gauge aluminized 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
  • Stainless steel exhaust tips constructed of T-304 stainless
  • 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

California Residents: Prop 65 Warning


Fits

  • 2014-2018 Chevy Silverado 1500, 6'6" Bed, Double Cab, 4.3L V6
  • 2014-2018 Chevy Silverado 1500, 6'6" Bed, Double Cab, 5.3L V8
  • 2014-2018 Chevy Silverado 1500 2WD, w/o 2 Piece Driveshaft, 5'8" Bed, Crew Cab, 5.3L V8
  • 2014-2018 Chevy Silverado 1500 2WD, w/o 2 Piece Driveshaft, 6'6" Bed, Crew Cab, 4.3L V6
  • 2014-2018 Chevy Silverado 1500 2WD, w/o 2 Piece Driveshaft, 5'8" Bed, Crew Cab, 4.3L V6
  • 2014-2018 Chevy Silverado 1500 2WD, w/o 2 Piece Driveshaft, 6'6" Bed, Crew Cab, 5.3L V8
  • 2014-2018 Chevy Silverado 1500 4WD, 6'6" Bed, Crew Cab, 5.3L V8
  • 2014-2018 Chevy Silverado 1500 4WD, 5'8" Bed, Crew Cab, 4.3L V6
  • 2014-2018 Chevy Silverado 1500 4WD, 6'6" Bed, Crew Cab, 4.3L V6
  • 2014-2018 Chevy Silverado 1500 4WD, 5'8" Bed, Crew Cab, 5.3L V8
  • 2014-2018 GMC Sierra 1500, 6'6" Bed, Double Cab, 4.3L V6
  • 2014-2018 GMC Sierra 1500, 6'6" Bed, Double Cab, 5.3L V8
  • 2014-2018 GMC Sierra 1500 2WD, w/o 2 Piece Driveshaft, 5'8" Bed, Crew Cab, 5.3L V8
  • 2014-2018 GMC Sierra 1500 2WD, w/o 2 Piece Driveshaft, 6'6" Bed, Crew Cab, 4.3L V6
  • 2014-2018 GMC Sierra 1500 2WD, w/o 2 Piece Driveshaft, 6'6" Bed, Crew Cab, 5.3L V8
  • 2014-2018 GMC Sierra 1500 2WD, w/o 2 Piece Driveshaft, 5'8" Bed, Crew Cab, 4.3L V6
  • 2014-2018 GMC Sierra 1500 4WD, 5'8" Bed, Crew Cab, 4.3L V6
  • 2014-2018 GMC Sierra 1500 4WD, 6'6" Bed, Crew Cab, 5.3L V8
  • 2014-2018 GMC Sierra 1500 4WD, 6'6" Bed, Crew Cab, 4.3L V6
  • 2014-2018 GMC Sierra 1500 4WD, 5'8" Bed, Crew Cab, 5.3L V8

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 2015-2018 Ford F150 3.5L Ecoboost - 817725
(00:58)
Watch This Video
Flowmaster American Thunder Cat-back Exhaust System 2015-2018 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 2014-2018 Ram 2500 - Part # 817709
(01:00)
Watch This Video
Flowmaster American Thunder Cat-back Exhaust System for 2016 - 2018 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 - 2011-2018 GM 2500HD & 3500HD - 817541
(01:24)

Review

Product Reviews Summary

Overall
4.8 
Appearance
5.0
Price / Value
4.8
Ease of Installation
4.8
Quality
4.8
8  Customer Reviews
5 Star
6   
4 Star
2   
3 Star
0   
2 Star
0   
1 Star
0   
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American thunder
Part #: FLM-817669 Posted on
Was this review helpful?
5.0
- 2015 Chevy Silverado 1500 (Radcliff, KY)
Appearance
Price / Value
Ease of Installation
Quality
Sounds fantastic, stainless steel, a direct bolt in everything you need is included, high quality hardware, looks great I couldn't be happier
Part #: FLM-817669 Posted on
Was this review helpful?
5.0
- 2015 Chevy Silverado 1500 (Polk City, IA)
Appearance
Price / Value
Ease of Installation
Quality
Easy install everything included
Part #: FLM-817669 Posted on
Was this review helpful?
4.0
- 2017 Chevy Silverado 1500 (NEW CASTLE, PA)
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
Part #: FLM-817669 Posted on
Was this review helpful?
5.0
- 2016 Chevy Silverado 1500 (New Britain, CT)
Installation
Part #: FLM-817669 Posted on
Was this review helpful?
5.0
- Chevy Silverado 1500 (Ottumwa, IA)
Appearance
Price / Value
Ease of Installation
Quality
Kit fit very well went on quickly
Great Product
Part #: FLM-817669 Posted on
Was this review helpful?
5.0
- 2014 Chevy Silverado 1500 (North Richland Hills, TX)
Appearance
Price / Value
Ease of Installation
Quality
Shipping was quick and this Flowmaster Cat-Back System fit my 2014 Silverado Z71 perfectly and sounds great. The install took about two hours by myself. I would recommend Flowmaster Exhaust Systems and RealTruck to anyone.
Great Exhaust
Part #: FLM-817669 Posted on
Was this review helpful?
4.3
- Chevy Silverado 1500 (Metamora, IL)
Appearance
Price / Value
Ease of Installation
Quality
It sounds great, looks great, but how it was packaged wasn't so great. The boxes with the tips were damage and scratched. The box with the muffler was a little damaged. But be sides that it's a great exhaust.
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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.


Installation

Flowmaster American Thunder exhaust 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.

 

PDF Icon Flowmaster 817669 Installation Instructions