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Stainless Works 3 in Retro LMF Cat-Back Exhaust w/ H-Pipe (15-17 GT Fastback w/ Long Tube Headers)

Market Price $1,437.16 You Save 12% ($165.34)
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$1,271.82 (kit)

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  • Item 393691

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    Features & Details

    • Aggressive Muscle Car Exhaust Note
    • Retro Chambered 3" Core LMF Mufflers
    • Full 3" Diameter 304 Stainless Steel Tubing
    • Mirror Polished 304 Stainless Steel Tips
    • Includes H-Pipe Assembly
    • Two 4" Tips w/ Chambered 3" Core Resonators
    • Designed and Manufactured in the USA
    • Fits 2015-2017 GT Fastback Mustangs with SW Long Tube Headers
    Hear it Roar. Your 2015-2017 GT has a lot of power and handles like a dream but, let's face it, the OEM exhaust system lacks the rich and rumbling attitude that you would expect from a performance vehicle. Enter Stainless Works and their 3" Retro LMF Cat-Back Exhaust System complete with a classic H-pipe. This system replaces the big stock mufflers and sound-choking resonator with a complete H-Pipe assembly and retro chambered 3" core mufflers. This upgrade will improve your Fastback's sound, performance and look all in one shot.

    H-Pipe and Retro Mufflers. If you're looking for that deep hot rod sound that you fell in love with at a young age, the H-Pipe included with this exhaust is the perfect choice for you. The exhaust flow is improved through the classic H-Pipe design and with the combination of retro chambered mufflers and resonator tips, each with a 3" core, the sound enhancement is incredible. Loud and proud is the name of the game with this Stainless Works Cat-Back.

    Quality Materials. Proudly made in the USA, this full 3" diameter mandrel-bent 304 stainless steel Retro LMF Cat-Back with X-Pipe won't get rusty or corrode with the elements the way cheaper SS can after exposure. This exhaust system provides enhanced sound and power as a result of superior manufacturing and comes with two mirror polished SS slash cut conical double-wall tips for a sharp finish to your exhaust. Not only will this system sound aggressive, improve power and look great, but it includes all the necessary hangers and clamps for a straight forward installation.

    Application. This Stainless Works 3" Retro LMF Cat-Back Exhaust System with H-Pipe is a perfect upgrade for 2015-2017 Mustang GT Fastbacks with either automatic or manual transmissions. Requires Stainless Works Long Tube Headers for proper fitment - please see ordering options above. Not compatible with convertibles.

    Fitment: 2015 2016 2017 Details

    MPN# M15CB3-LMF

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Right Muffler Assembly
    • (1) Left Muffler Assembly
    • (1) H-Pipe Assembly
    • (1) Right Intermediate Pipe
    • (1) Left Intermediate Pipe
    • (2) Resonator Tips
    Installation Info
    Tech Specs
    Cat-Back Exhaust Specifications
    Piping Material: 304 Stainless Steel Tip Material : Mirror Polished 304 Stainless Steel
    Piping Size: 3" Tip Size: 4"
    Muffler Type: Retro Chambered 3" Core LMF Fitment: 2015-2017 GT Fastback w/ Long Tube Headers
    Will it fit my Mustang?

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    Customer Reviews (2) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Afternoon

    • Loudness / Volume 5 5
    • Exhaust Note 5 5
    • Fit & Finish 3 3
    • Bang For Your Buck 5 5

    • 5/5

      Installation Time: Afternoon

      April 15, 2017

      Extremely loud!

      I did a ton of research before buying a system for my GT and I knew I wanted loud, clean sound. I got the LMF version of the Stainless Works systems because it's supposed to be louder and it really is. It sounds great but it is ridiculously loud. I would recommend buying the base version unless you are looking for a system that is stupid loud and can wake up a whole town with a smash of the throttle. This exhaust gets you attention whether you want it or not. Only complaint is one exhaust tip came crooked from the factory but Stainless Works took mine and sent a new one for free. Also, would recommend getting an aftermarket cold air intake and BUY A TUNER. After install the car choked and didn't run right but I bought a Bama tuner and the car is a beast now. Once again, great sound, crazy loud.


      Year: 2016 Submodel: GT

      Helpful (8)

    • 5/5

      July 17, 2016

      The Sounddddddd!

      It sound very loud and the definition of the sound is perfect. This something that is a must if you own an GT.


      Year: 2015 Submodel: GT

      Helpful (9)

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