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Magnaflow MF Series Dual Exhaust System - Rear Exit (14-18 5.3L Sierra 1500)

Market Price $1,078.58 You Save 12% ($124.08)
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  • Item S502348

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    Features & Details

    • Mandrel-Bent for Smooth Flow
    • Made in the USA
    • 409 Stainless Steel Construction
    • Durable and Stylish
    • Polished Tips
    • Lifetime Warranty
    • Fits 2014-2018 5.3L GMC Sierra Models
    The Magnaflow Advantage. When you buy a Magnaflow MF Series Cat-Back Exhaust- Split Rear Exit, you not only get better fuel economy and efficiency, but you also get that smooth, deep growl you've been wanting for your 2014-2018 5.3L GMC Sierra 1500. Made in the USA, this cat-back exhaust features a straight-through flow design, giving you the ultimate increase in horsepower and torque.

    Max Durability. Made from durable and strong 409 stainless steel and mandrel-bent 3-inch tubing, your new Magnaflow MF Series exhaust is made to last. This is backed by a lifetime warranty on construction—giving you the peace of mind that this exhaust will last the life of your truck. The polished tips add a little style as well.

    Install in No Time. Offering an easy bolt-on design, your new cat-back exhaust will take approximately two hours to install and includes all the necessary parts and hardware to do so. Should you need any assistance, installation videos are available on the website.

    Application. This Magnaflow MF Series Split Rear Exit Cat-Back Exhaust is designed to be used on the 2014-2018 5.3L GMC Sierra's with the following cab and box configurations.
    • Regular Cab with the Standard Box
    • Double Cab with the Standard Box
    • Crew Cab with the Short Box.

    Fitment: 2014 2015 2016 2017 2018 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Magnaflow MF Series Cat-Back Exhaust Kit
    • All Necessary Parts and Hardware
    • Installation Instructions
    Installation Info
    Tech Specs
    Will it fit my Sierra 1500?

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        Questions & Answers (4)

        4 Top Rated Questions

        Does this system have a lot of cab noise I don't want a lot of noise in cab

        • Sound is a subjective measure and will differ to each person. This is one of Magnaflow's quieter exhaust systems and will have some cabin noise.

        Helpful (0)

        What is the diameter of the MF system. I want the electronic cutout and don't know what one to get.

        • This would be a 3" diameter  

        Helpful (0)

        is the 4.3 and 5.3 exhaust the same?

        • The exhausts for the 4.3L will not be the same as the options for the 5.3L.

        Helpful (0)

        Can I get the black tips for this system?

        • At this time this system would not come in black tips.

        Helpful (0)
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          Customer Reviews (1) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Afternoon

          • Loudness / Volume 3 3
          • Exhaust Note 4 4
          • Fit & Finish 5 5
          • Bang For Your Buck 5 5

          • 5/5

            Installation Time: Afternoon

            September 19, 2018

            Best Exhaust System For The Price

            My thoughts on this cat back is very honest and true. It doesn't cause any drone while driving and when you want it to roar it roars. I recommend this product to anyone with a sierra, because it wakes the beast trapped in the hood.


            Year: 2017 Submodel: SLT Engine: 5.3L V8

            Helpful (11)

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