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Flowmaster Exhaust Systems Part #817509 Customer Reviews

Average Rating

9 Customer Reviews

Flowmaster Force 2 system for my ford F150 5.0

Reviewed by Timothy S (Hawley, PA) Reviewed for a 2013 Ford F-150 — Apr 27, 2017 10:19 AM

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I previously had another brand high performance muffler system on my 2013 Ford F 150 5.0. It was great in the beginning but as the fiberglass began to burn out of the muffler, it got too loud and the drone was bad in the cab. I am totally happy with the Force 2 flowmaster system. It is all stainless steel and will never burn out of change tone. It is just loud enough and the drone is minimal. Great system

Force II single tip looks and sounds great

Reviewed by Carol W (BOTHELL, WA) Reviewed for a 2009 Ford F-150 — Oct 20, 2015 10:21 AM

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Love the sound of the Force II. Quiet when idling or cruising, but lean on the throttle and it roars. This is how it should sound from the factory. Slight improvement in throttle response too.

Flowmaster 2010 F150

Reviewed by Doug D (Port Huron, MI) Reviewed for a 2014 Ford Mustang — Aug 28, 2015 4:38 AM

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Stainless Steel exhaust is nice.. But it is thin walled and yet well made.. a few mods and it`s on there.. Too early to tell if it helps MPG or not.. We will see how durable it is in the long term.. Overpriced !

Force II

Reviewed by Frank G (NORTH DARTMOUTH, MA) Reviewed for a 2014 Ford F-150 — May 18, 2015 12:18 PM

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This is the 5th cat-back system I have installed, first Flowmaster, and by far the least satisfying, and hardest to install. The instructions were wrong and there were parts missing. When I called Flowmaster tech support the guy I spoke to was very nice but no help at all. The tailpipe had a slight egg shape to it and I had to go to a muffler shop to complete the install. I doubt I would buy Flowmaster again. At least the sound is about what I expected.

Nice Rumble on the 5.4 V8!

Reviewed by Joseph P (HENDERSON, NV) Reviewed for a 2009 Ford F-150 — Mar 19, 2015 11:26 AM

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If you have an aggressive tune on your truck from mike@5star, or someone else then you may want to consider the Force II (50 series) over the Outlaw or American Thunder. I cant imagine wanting it louder than this. I have an intake(afe) and tune(91 performance) and this thing rumbles perfect. I threw on the heat shield too and it makes a suttle difference in cabin noise. I have seen a slight increase on mpg (0.5+mpg). LOVE FLOWMASTER SOUND!! Buddy has MBRP and no rumble to it!

2012 f150

Reviewed by Richard A (Wellford, SC) Reviewed for a 2016 Ford F-150 — Oct 29, 2013 8:10 PM

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1 of 3 people found the following review helpful.

Love the sound !

2010 Ford FX4

Reviewed by ron l (LOS LUNAS, NM) — Sep 12, 2013 8:13 PM

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It fit right up on the truck. No problems installing it...sounds great and it did boost my mileage a bit too.

Great Flowmaster Sound

Reviewed by Clint C (LEANDER, TX) Reviewed for a 2012 Ford F-150 — Jan 30, 2013 11:32 AM

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5 of 5 people found the following review helpful.

Got it quick from AutoAnything. Took about an hour to install on the ground. Quality made kit that went together fast. I was concerned that the Force II would be too quiet, but turned out to be just right. Nice low rumble at idle, and roars when you accelerate. Interior drone not a problem under normal driving conditions. Barely hear it when it hits 6th gear. Makes my F150 V8 sound like it should.

Force 2 exhaust

Reviewed by Richard H (Rosamond, CA) Reviewed for a 2010 Ford F-150 — Sep 01, 2012 6:41 AM

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8 of 10 people found the following review helpful.

I have had the exhaust for about 2 weeks. Love the sound outside the truck and even had several compliments about the sound. Inside the cab the sound is louder than I wanted. The bolt on gains are noticeable. I'm considering getting a 70 series muffler to switch out the 50 that was sent. Not sure if I'll get used to the loudness in the cab. When on cruise it's almost unnoticeable. Good quality product.

Flowmaster Exhaust Systems - 817509

Cat Back Exhaust - Force II Series
  • $601.94
  • Free Shipping
  • Ships Between 7/23 - 7/25
  • What Do You Drive?


  • Style:
    Single Rear Exit (409 Stainless)
  • Material:
    With Single Exhaust Tip
  • Part #:

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