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Flowmaster Exhaust Systems Part #817691 Customer Reviews

Average Rating

8 Customer Reviews

Awesome upgrade!

Reviewed by Scott S (Boone, IA) Reviewed for a 2010 Ford F-150 — May 02, 2018 8:34 PM

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This was a great upgrade to my truck. Great sound outside and not overwhelming in the cab.


Reviewed by Steven F (OSWEGO, NY) Reviewed for a 2009 Ford F-150 — Feb 04, 2016 9:09 AM

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This exhaust sounds awesome. A bit of drone, but if you want to feel and hear the power when you hit the gas, this is the exhaust for you.

Disturbing the peace

Reviewed by Jeffrey M (SCOTTSVILLE, NY) Reviewed for a 2014 Ford F-150 — Aug 12, 2015 8:57 AM

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I spent weeks scouring the web for a kit for my 5.0L Supercrew that was; stainless steel, under $750, and was loud. Flowmaster delivered on all of these terms. The YouTube videos do this kit no justice. On the highway you almost forget you have a kit, until you pull out to pass the Prius owner out for a Sunday drive! You will be heard from down the street and around the corner. Two faults to this kit, carbon steel drivers side hanger and no option for polished stainless tips.

Flowmaster outlaw series

Reviewed by Zachary I (MONONGAHELA, PA) Reviewed for a 2010 Ford F-150 — Jun 04, 2015 6:53 PM

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I purchased this exhaust looking for something that would sound good but not too loud in the was a perfect match for me. Sounds great, easy to install but it does make things easier if you have a second person.


Reviewed by marc S (WAUNAKEE, WI) Reviewed for a 2013 Ford F-150 — May 05, 2015 9:05 PM

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Was too loud in the cab at first but I installed a resonator and now it is perfect. Easy to install but the tips could have a better mounting system.

Best exhaust systems

Reviewed by Juan R (MARION, TX) Reviewed for a 2014 Ford F-150 — Dec 28, 2014 8:08 PM

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Flowmaster has the best exhaust systems on the market. It sound better than the others and rather easy to install.

Flowmaster outlaw exhaust system

Reviewed by Joel P (MANISTIQUE, MI) — Dec 08, 2014 9:39 PM

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0 of 2 people found the following review helpful.

When I ordered this exhaust system it was for 4.6l & 5.4l engines only. I installed this system on a 2011 Ford F-150 Harley Davidson with a 6.2l engine which has the same exhaust system. It fit perfectly other then exhaust clamps were useless no matter how tight you tighten them. The sound is was perfect and just what the truck needed my neighbor really love me now!

f150 flowmaster

Reviewed by mark c (AMSTERDAM, NY) Reviewed for a 2010 Ford F-150 — Jun 07, 2014 3:14 PM

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Sounds good. Quiet in the cab with minimal drone. Tips would not tighten down all the way and had to do some mods. Overall good exhaust for the price.

Flowmaster Exhaust Systems - 817691

Cat Back Exhaust - Outlaw Series
  • $799.16
  • Free Shipping
  • Ships Between 7/23 - 7/25
  • What Do You Drive?


  • Style:
    Dual Rear Exit (409 Stainless)
  • Material:
    With Dual Exhaust Tips
  • Part #:

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