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Magnaflow MF Series Dual Exhaust System - Rear Exit (14-18 4.3L Sierra 1500)

Market Price $1,078.58 You Save 12% ($124.08)
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  • Item S502347

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    Features & Details

    • 3” Mandrel-Bent Tubing
    • Split Rear Exit
    • Solid Stainless Construction
    • Made in the USA
    • Smooth, Deep Sound
    • Fits 2014-2018 4.3L GMC Sierra Models
    A Ride That Purrs. Looking for that smooth and low sound that can only come from a top-of-the-line performance exhaust system? Introducing the Magnaflow MF Series Cat-Back Exhaust- Split Rear Exit. Engineered to last, this system provides the sound you desire, with the wide-open performance you need in your 2014-2018 4.3L GMC Sierra. Magnaflow backs this with a lifetime warranty.

    Classy and Tough. Three-inch mandrel-bent tubing and 409 stainless steel ensure a straight-through flow and durable exhaust that will last as long as your Sierra does. The polished tips add a bit of class to make your ride stand apart—while the flow design offers major increases in horsepower and torque.

    Easy Install. Made in the USA, your new Magnaflow MF Series Cat-Back Exhaust- Split Rear Exit utilizes a bolt-on design for an easy install. In two hours or less, you'll be ready for the trail or the highway. Need a little help? Installation videos are available on Magnaflow's website.

    Application. This Magnaflow MF Series Split Rear Exit Cat-Back Exhaust is designed to be used on the 2014-2018 4.3L 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 System
    • All Necessary Parts and Hardware
    • Installation Instructions
    Installation Info
    Tech Specs
    Will it fit my Sierra 1500?

      Customer Photos

        Questions & Answers (3)

        3 Top Rated Questions

        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)
        Post Your Question

          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

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

            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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