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Flowmaster Force II Stainless Steel Dual Exhaust System - Side/Rear Exit (11-14 5.0L)

Market Price $816.99 You Save 13% ($107.02)
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  • Item T527177-AB
  • MPN# 817478

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Features & Details

  • Classic Flowmaster Sound
  • Super 50 Series Muffler
  • Durable 409 Stainless Steel Construction
  • 3 in. Inlet, 2.5 in. Outlet Mandrel-Bent Tubing
  • 3 in. Polished Stainless Steel Tips
  • Choice of Side or Rear Exit
  • Easy Installation; Some Trimming May Be Required
  • Fits All 2011-2014 5.0L F-150s
Ground-Shattering Sound. Roar onto the scene and make sure they know you’ve arrived with the Force II Cat-Back Exhaust System from Flowmaster. This exhaust system comes complete with specific mandrel bent tubing that increases the sound coming from underneath your F-150. Let them know you’ve arrived with the throaty, mellow tone of this exhaust kit.

Powerful Performance. The Cat-Back Exhaust System stands strong with a Super 50 Series Muffler, combined with the mandrel bent tubing. After the kit is fully installed, it will help take away some of the previous exhaust restrictions, giving the vehicle better torque and higher horsepower.

Constructed with Quality. The Flowmaster products are made in the USA, which means the Force II Cat-Back Exhaust is secure in its 3 inch inlet/dual 2.5 inch outlet tubing. The tubing is a 409 stainless steel, 16 gauge design. It is corrosion resistant and decorative with the “Flowmaster” logo added to the polished tip.

Ease of Installation.This kit is simple to install with only the most basic hand tools. It is designed to use the existing mounting on the truck, and needs no modifications. Your truck will have that throaty growl in less than an afternoon.

Application.This Flowmaster Force II Stainless Steel Single Side Exit Cat-Back Exhaust is designed to fit on all 2011 to 2014 F-150s powered by the 5.0L engine.

Fitment: 2011 2012 2013 2014 Details

What's in the Box
  • (1) Inlet Pipe
  • (1) Adapter/Extension Pipe
  • (1) Muffler
  • (1) Right Tailpipe
  • (1) Left Tailpipe - Front
  • (1) Left Tailpipe - Rear
  • (2) Side Exit Pipes
  • (2) Rear Exit Pipes
  • (2) Stainless Tips
  • Hardware Kit
Installation Info
Will it fit my F-150?

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2 Questions / 2 Answers

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Is the Force II, Series 50, drone substantially less pronounced than the American Thunder, Super 40, and is it day to day live able? I have the American Thunder on my 2014 GT and the drone was too much for me. I don't want my neighbors to hate me. Thanks.


  • Hey Ken, So the Force II are going to be noticeably less loud than the American Thunder. Of course I cannot give an exact level but they are designed to be just a slight upgrade from stock. Flow master, in terms quietest to loudest, goes Force II -> American Thunder -> Outlaw. So there will be a decrease in sound so that your neighbors will not hate you.


Helpful (1)

I don't see a place to input bed size, I have a 5.7 bed. will this system work?


  • This system will work with a short bed or long bed as this comes with extension pipes that you can put on your truck if you need to have them on there.


Helpful (0)

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