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Flowmaster Exhaust Systems Part #817477 Customer Reviews

Average Rating

34 Customer Reviews

good product

Reviewed by stephen w (Morningside, MD) Reviewed for a 2014 Dodge Ram — Jul 04, 2017 7:41 PM

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Good sound and quality was a bit to install but overall I like it.

Harry G.

Reviewed by Harry G (BATON ROUGE, LA) Reviewed for a 2014 Dodge Ram — Jun 13, 2017 9:54 PM

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This is a great sounding system. Very easy to install, looks great on my truck, very happy with this purchase

Flowmaster American Thunder

Reviewed by Raymond T (Lubbock, TX) Reviewed for a 2015 Dodge Ram — Apr 27, 2017 12:42 PM

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Easy installation. Recommend you tack weld or weld all joints.

American Thunder Rocks!

Reviewed by John H (Ft. George Meade, MD) Reviewed for a 2016 Dodge Ram — Jun 26, 2016 3:07 PM

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RAM 1500 HEMI - just the sound I was looking for to bring out the beast in my engine. The price point was better than I expected, noticible performance and fuel boost, and easy installation as a bolt on. Can't go wrong with Flows.

Flowmaster Rules

Reviewed by corin t (Monroe Township, NJ) Reviewed for a 2016 Dodge Ram — Jan 14, 2016 10:47 AM

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Bought a flow master cat back exhaust system for my 2015 dodge ram 1500 with a hemi. It sounds great!! Not overly obnoxious, but a real nice growl.


Reviewed by Douglas T (SHAWNEE, KS) Reviewed for a 2015 Dodge Ram — Nov 24, 2015 11:41 AM

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Exhaust system was easy to install. It sounds stronger than original system.

Hardest part was taking out the factory exhaust

Reviewed by John M (PASADENA, TX) Reviewed for a 2013 Dodge Ram — Mar 30, 2015 5:18 AM

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1 of 1 people found the following review helpful.

The Flowmaster system sounds great! Not to loud when you are driving down the road but lets you know your driving a Hemi when you step on the gas. The Flowmaster system was a direct fit, hardest part was taking out the factory system. I installed the system by myself in less than 1.5 hours.

awesome products.

Reviewed by John K (New Town, ND) Reviewed for a 2009 Dodge Ram — Mar 24, 2015 8:38 PM

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Super easy to install great product.

Sounds great, but not a perfect fit

Reviewed by Sean B (Lancaster, CA) Reviewed for a 2012 Dodge Ram — Dec 16, 2014 10:23 PM

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0 of 1 people found the following review helpful.

The most difficult part of the installation was removing the stock exhaust. Installing the Flowmaster kit was easy enough, but no matter how much I tweaked and adjusted the tailpipes I could not get the tips centered perfectly on the bumper cutouts. Also, they stick out about 1 1/2 inches further than the stock tips. I'm going to take it to a muffler shop and have them center and shorten the outlets and weld everything. Sounds good, and even better with my new K&N intake!!


Reviewed by BOB M (Springfield, VA) Reviewed for a 2011 Dodge Ram — Nov 16, 2014 3:31 PM

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1 of 1 people found the following review helpful.

Was easy to install. Within 45 minutes I was rumbling out of my shop. Great product. Auto anything helped me pick this out for my truck. Thanks.

Flowmaster Exhaust Systems - 817477

Cat Back Exhaust - American Thunder Series
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  • Style:
    Dual Rear Exit (409 Stainless)
  • Part #:
  • Main piping diameter: 2.5"
  • 50 series H.D muffler
  • 3" single inlet, 2.5" dual outlet muffler
  • Two 4" logo embossed stainless tips
  • Lifetime Limited Warranty
  • Download installation instructions (PDF)
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