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1979-98 Ford Mustang Flowmaster Exhaust Dumps Aluminized Steel by Flowmaster

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Mustang Flowmaster Exhaust Dumps Aluminized Steel (79-98)

Give your 1986-1998 Mustang 5.0 or 4.6 an aggressive sound with a set of Flowmaster Exhaust Dumps!

Item# FLO-17574

Everyday Low Price: $325.00

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  • Improves Performance
  • Increased Exhaust Tone
  • Great For Track Cars
  • 3 Year Warranty!


  • 2.5" Diameter Tubing
  • Super 44 Mufflers
  • Weleded Hangers
  • Aluminized Steel Construction
  • Fits 1979-98 Mustang

What's in the Box

  • (2) Flow Tubes
  • (2) Flowmaster Mufflers
  • (2) Turn Down Tips

Made in the USA

Product Description

Why no Tailpipes?
The majority of drag race or road race oriented Mustang suspension systems often do not allow for clearance of cat-back tail pipes. This Flowmaster Dumped Exhaust System allows you to still have a bolt on Mustang cat-back exhaust solution without a trip to the exhaust shop. The exhaust tip dumps right in front of the rear axle housing.

1979-98 Mustang V8 Turn Down Exhaust?
You bet! The Flowmaster 17574 American Thunder Dump Kit is a direct bolt on for 1986-1995 5.0L Mustang LX, GT, and Cobra as well as 1996-1998 Mustang 4.6L GT and Cobra. It will also fit 1979-1985 V8 Mustangs if converted to dual exhaust. It is constructed of 2.5" aluminized steel with the flow tubes already welded to the muffler inlet. The turn-down tips can be adjusted and trimmed as needed, then clamped in place with the supplied hardware, or welded in place. This kit bolts directly to any 86-98 Mustang H-pipe or X-pipe with OE style ball and socket connections.

Flowmaster Super 44 2-chamber Mufflers!
The staple of the signature Mustang sound! The two chamber Supper 44 muffler is the heart and soul of this American Thunder Mustang Dump Kit. You will experience interior drone and resonation because the exhaust exit is directly underneath the passenger compartment. The tone can only be described as aggressive and you should check your local drive by noise laws if applicable.

Product Videos

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!

1 Customer Photo

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Customer Reviews

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  Super 44 Flowmaster
By on 4/29/2014
Image uploaded by kevin This cat back system was extremely easy to install, it took no time at all. The price is incredibly affordable and the sound is amazing! I love it...

Yes, I would recommend this item to a friend!

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  Sounds freaking sweet
By on 3/3/2014
This has been my favorite mod I have done so far to my car. Sounds really sweet! Nice low rumble that reminds you of why someone would want a V8. Of course cabin noise is up but not as much as I expected. And I normally keep my car in lower RPMs for gas mileage but sounds so much better in the upper RPM range

Yes, I would recommend this item to a friend!

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Vehicle Applications

Ford Mustang - 1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93) - 1994 (94) - 1995 (95) - 1996 (96) - 1997 (97) - 1998 (98)

Ford Mustang - 1979 (79) - 1980 (80) - 1981 (81) - 1982 (82) - 1983 (83) - 1984 (84) - 1985 (85)

About This Brand

Flowmaster - The Exhaust Technology Company
Flowmaster operates the only exhaust Research & Design facilities of its kind in the world, centered around the SuperFlow SF-7100 engine dynamometer complete with E.C.A. (engine cycle analysis) equipment and also SuperFlow chassis dyno's.

Through use of these dyno's, Flowmaster's engineering staff can track the complete engine cycle in millionths of a second and can obtain exact technical data of each degree of cam rotation, from induction to the tip of the exhaust system, while also showing the power numbers that really matter, the power numbers "to the ground."

Flowmaster also utilizes Spectrum Analyzers to fine "tune" the sound of each of the eleven different series of mufflers that Flowmaster currently offers, both for peak performance and just the right sound levels and tones. Flowmaster's dedication to quality is what makes them the exhaust industry leader for Latemodel Mustangs and SVT Lightnings!

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