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Roush Performance Rear Exit to Side Exit Exhaust Conversion Kit (11-14 5.0L F-150)

AmericanTrucks no longer carries the Roush Performance Rear Exit to Side Exit Exhaust Conversion Kit (11-14 5.0L F-150). Please check out 2009-2014 F-150 Exhaust Systems for an updated selection.
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Features, Video & Details

  • Converts Roush 421248 from Rear Exit to Side Exit
  • Still Provides Deep Aggressive Tone
  • 409 Stainless Steel Construction
  • 3 in. Mandrel-Bent Tubing
  • 3.5 in. T304 Stainless Steel Y-Pipe Tip with Chrome Flashing & Roush Logo
  • Simple Installation; No Cutting Required
  • Fits 2011-2014 5.0L F-150s with Roush part# 421248

Review & Installation Video

Review & Install Video

A Deep-Toned Boom. The Roush Performance Side Exit Exhaust Conversion for 11-14 5.0L delivers that big resounding sound you have always wanted within hardware that actually improves the overall aesthetic of the ride.

A Step Forward in Power. It's a step up in every way from the factory model work that began the ride. With a bigger Roush Performance Side Exit Exhaust Conversion for 11-14 5.0L, you can expect an equally big step up in power. A boost in torque and horsepower accompanies this stylistic conversion add-on.

Setting a New Standard. The construction, as always, represents the leading force of Roush in Roush Performance Side Exit Exhaust Conversions. A stainless steel y-pipe tip is accented with a rousing chrome flash finish.

Easy Installation. The entire installation of the Roush Performance Side Exit Exhaust Conversion should be relatively straightforward, but it may require an extra set of hands. Cutting of the piping or other modifications are not typically required, and a basic set of tools with get the job done.

Application. The Roush Performance Side Exit Exhaust Conversion is specifically designed to convert the Roush Part# 421248 from a rear exit to a side exit for the 2011-2014 5.0L F-150s.

Fitment: 2011 2012 2013 2014 Details

MPN# 421712

CA Residents: WARNING: Cancer and Reproductive Harm -

Installation Info
Tech Specs
  • (1) Tail Pipe
  • (1) Y-Pipe Tip
Will it fit my F-150?

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Questions & Answers (3)

3 Top Rated Questions

I have stock exhaust currently can I use this? I see it says mounts up with roush system nothing about factory...

  • Unfortunately, this conversion kit is designed to be used with the Roush exhaust part number 421248 and will not be a bolt-on upgrade for the stock exhaust.

Helpful (0)

will this make my truck a little louder

  • This kit should not affect the sound of your truck, it would just change the exhaust tip location and style. This item is also only compatible with Roush part number 421248.

Helpful (0)

So this exhaust system will fit on my 2012 5.0 F150 8 foot bed work truck correct

  • Yes the Roush Performance Side Exit Exhaust Conversion will fit on your 2012 5.0 F150.

Helpful (0)
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Customer Reviews (2) Write a Review

Overall Rating 4

out of 5 stars

Installation Time:Less than 1 Hour

  • Loudness / Volume 4.5 4.5
  • Exhaust Note 4 4
  • Fit & Finish 3 3
  • Bang For Your Buck 3.5 3.5

  • 3/5

    Installation Time: Less than 1 Hour

    December 07, 2017

    Not happy with final location

    Everything went on smooth and dandy except the tail pipes look out of place, they hang down about 4 inches from the rear corner panel.


    Year: 2014 Engine: 5.0L V8

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    September 09, 2017

    Great sound

    This takes your rear exit roush exhaust and puts it right behind the right rear tire. Personally I think you get to experience more of the sound than the rear exit.


    Year: 2013 Engine: 5.0L V8

    Helpful (4)

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