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Flowmaster Exhaust Systems Part #817567 Customer Reviews

Average Rating

8 Customer Reviews


Reviewed by Rick B (Grand Junction, CO) Reviewed for a 2014 Ford F-150 — Jul 11, 2016 9:06 PM

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I am super happy with this Flowmaster American thunder system! I had a Flowmaster system on my previous truck, and came to love it over the 11 years I owned it. Auto Anything was extremely fast shipping! The removal of the old exhaust and installation of the new Flownaster system literally took less than an hour, sounds amazing, and I couldn't be happier!


Reviewed by Janice G (Cumberland, MD) Reviewed for a 2012 Ford F-150 — Feb 16, 2016 3:52 AM

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This is a great exhaust and a great price

Flow master American thunder exhaust kit 2013 f150

Reviewed by Scott B (DALLAS, GA) Reviewed for a 2013 Ford F-150 — Oct 20, 2015 5:21 AM

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This wasn't hard to install if you have some wrench time and sounds mean at start up nice deep tone that's know from flow master have to say was a little louder than I thought it would be but at 55 mph hardly hear it but a little drone noise.

Great exhaust system

Reviewed by Christopher U (East Greenville, PA) Reviewed for a 2011 Ford F-150 — Aug 05, 2015 3:49 AM

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This is a great system if you want an aggressive sound and good looks. My F-150 has an aggressive growl to it now.

flowmaster exhaust system

Reviewed by mary b (south branch, MI) Reviewed for a 2011 Ford F-150 — Jan 12, 2015 4:46 AM

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got it in two day. after we seen the big box WITH THAT NAME FLOWMASTER we was ready to get it on and we did the sound was amazing I felt like a kid got it on the road and open it up all the way we tell we hit 75mph haha well worth the it the price 5 stars I give it a 10 more to put on my truck and will go with for the rest of the right parts for my truck thank u all


Reviewed by Matthew H (COMMERCE CITY, CO) Reviewed for a 2013 Ford F-150 — Apr 18, 2014 3:21 PM

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1 of 1 people found the following review helpful.

Easy to install, sounds and looks great!

2010 FX4

Reviewed by Matthew W (ROWLETT, TX) Reviewed for a 2010 Ford F-150 — Nov 06, 2012 3:08 PM

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1 of 2 people found the following review helpful.

Great sound, a little louder than I expected but overall a great system. Only issue was the hanger/clamp is only 3" ID and when you have to put it on the rear exhaust pipe and muffler outlet, it's nearly impossible to get it locked down with just one person.

2009 F150 FX crew cab

Reviewed by MICHAEL P (Gilbertsville, PA) Reviewed for a 2009 Ford F-150 — Jun 04, 2012 5:55 AM

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8 of 12 people found the following review helpful.

I have been adding things to my F150 from AutoAnything, I have Superchip on for over a year , just added the Exhaust system been looking for 3.5" or 4" system got it not only look nice it sounds great and the back pressure from the stock to this open flow my truck rolls better and gets better mileage. If I baby my truck I can get 20.3 miles per gallon before the exhaust exhaust change the best I could get was 17.3. But I like the sound and love getting on it so I'm getting 15.8 which is great.My next purchase will be the K & N cold air box from AutoAnthing prices are the best! I have 20" BF Goodrich/TA tires with nitrogen in them which also help the mileage.

Flowmaster Exhaust Systems - 817567

Cat Back Exhaust - American Thunder Series
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  • Style:
    Single Side Exit (409 Stainless)
  • Part #:
  • 3.5" Pipe
  • 50 Series HD Muffler
  • 3" inlet, 3.5" outlet
  • 4" Tip
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