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2011-14 Ford Mustang 5.0L Dynomax Ultra Flo Axle Back Exhaust Kit GT - S197

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Mustang Dynomax Ultra Flo Axle Back Exhaust Kit (11-14) 5.0L

With this 2011-2014 Mustang Dynomax Ultra Flow axle back kit, you get great performance & exhaust tones!

Item# DYN-39504

Your Price: $349.97

Market Price:$359.99
You Save 2.86 % ($10.02)

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  • More Horsepower
  • Aggressive Exhaust Tone


  • Ultra Flo Mufflers
  • 3.5" Exhaust Tips
  • Slant Cut Tip Design

What's in the Box

  • (2) Ultra Flow Axle Back Mufflers

Made in the USA

Product Description

More Horsepower & Performance
Looking to bolt on more horsepower to your 2011-2014 Mustang GT? This Dynomax Ultra Flo axle back kit can add up to 13 additional horsepower & 13 additional ft/lbs of torque to your 5.0L motor. With Dynomax's Ultra Flow mufflers, you get a free flowing axle back kit that also gives you that famous American muscle car sound.

High Quality Construction
This axle back kit features 2.75" stainless steel, mandrel bent inlet pipes with OE flare connections to easily bolt up to your stock exhaust. Each Ultra Flo muffler includes a 10" double wall, buffed & polished 3.5" tip. This slant cut, stainless steel tip gives your S197 Mustang a clean new look!

-Fits 2011-2014 Mustang GT 5.0L

Product Videos

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1 of 1 REVIEWS
1 of 1 REVIEWS

  Great sound!
By on 10/20/2014
After running Ultraflows on my fox body for years I decided to try them on my 13 GT. I Bought these to replace my GT500 mufflers and couldn't be happier with the change in sound. It's a deeper sound that's much quiter at idle than the GT500 mufflers. At WOT they get louder but not obnoxious. I was disappointed in the condition they arrived in though. The collector on one of them was dented which I was able to straighten out and one of the tips was dented and scratched. Dynomax should package them better to prevent this type of damage. The mufflers also sit angled once mounted, not flat like OEM. You could probably modify the inlet side of the exhaust and shorten the pipe to correct this but it should fit like OEM in my opinion. Overall I love the sound of the mufflers just a little disappointed in the fitment.

Yes, I would recommend this item to a friend!

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Vehicle Applications

Ford Mustang - 2011 (11) - 2012 (12)

About This Brand

Dynomax is a leader in the industry when it comes to providing Mustang enthusiasts with high quality exhaust components. From exhaust systems to mufflers, Dynomax has just what you need to get your Mustang sounding, performing, and looking better! Their exhaust parts are used everyday on track, drag, and daily driven Mustangs. Shop Dynomax Cat Back and axle back exhaust kits at LatemodelRestoration.com.

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