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5" Stainless Downpipe Back Single NO Muffler
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        5" Stainless Downpipe Back Single NO Muffler | 2020-2023 GM 2500/3500 6.6L DURAMAX L5P (FLO-PRO)

        SKU: 532017

        Upgrade your truck’s performance with the Mel’s Manufacturing 5" Stainless Downpipe Back Single NO Muffler, specially engineered for the 2020-2023 GM 2500/3500 6.6L DURAMAX L5P. With its durable aluminized steel construction and easy installation features, this high-performance exhaust system ensures enhanced airflow and significant horsepower gains—perfect for closed-course racing enthusiasts. Don't wait to unleash your truck's potential; transform your driving experience today!

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        Mel’s Manufacturing
        Vehicle Specific
        Check if this part fits your vehicle.
        • Brand: Mel’s Manufacturing
          • 3% off
          $1330.00 save $39.90
        • $1290.10

        The Mel’s Manufacturing 5" Stainless Downpipe Back Single NO Muffler is expertly designed for the 2020-2023 GM 2500/3500 6.6L DURAMAX L5P, constructed from durable 16 gauge aluminized steel or T409 stainless steel.

        With ease of installation as a priority, this high-performance exhaust system incorporates contour-bent hangers, TorcTite clamps, and an OEM style 4-bolt flange, ensuring compliance with necessary turbo direct pipe specifications.

        Experience significant horsepower increases, improved airflow, and lower exhaust gas temperatures—an ideal choice for enthusiasts engaged in closed-course racing. Transform your truck’s performance today and enjoy the remarkable sound that Mel's system delivers!

          • SKU
            532017
          • Weight
            63 lbs
          • Manufacturer Part #
            SS20151NM
        • Material
          Aluminized, Stainless
        • Muffler
          With Muffler, Without Muffler
        • Brand
          Mel’s Manufacturing
        • Manufacturer
          Mel's Manufacturing
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        Shipping Times

        Most customers will see their parts within 3-5 business days. We will primarily ship with Purolator ground & DHL Express to ensure the fastest shipping possible.

        Please Note: These are only estimates and shipping time may vary depending on your location, out of country and rural locations expect longer wait times.

        Where Do We Ship 

        We will ship our products within Canada and the United States.

        Please Note: There are limitations what can be shipped to the United States.

        Damaged Shipments

        We provide the option to purchase insurance as we are not responsible for any damage while with a courier, we don’t often see issues, but it does happen. If you purchased insurance we will put in a claim, if no insurance was purchased there will be no refunds or exchanges.

        We accept the following payment methods:


        Return Policy

        It happens sometimes we would like to return it. Here are our return rules:

        • Prior to any return you must contact us and get an approval for a  RMA number
        • Product must be unopened and have no damage. 
        • You must pay for the shipping back, please insure so if anything happens you can make a claim, we are not responsible for damage during shipping and is the sole responsibility of the customer.
        • Regular products are subject to a 5% Restocking fee.
        • Items over 50 lbs. or special orders will be subject to a 20% Restocking fee.
        • Electronics & Tuning is a final sale and cannot be returned. 
        • Fitment Type
          Vehicle Specific
        YearMakeModelNotes
        2020ChevroletSilverado 2500 HD
        2020ChevroletSilverado 3500 HD
        2020GMCSierra 2500 HD
        2020GMCSierra 3500 HD
        2021ChevroletSilverado 2500 HD
        2021ChevroletSilverado 3500 HD
        2021GMCSierra 2500 HD
        2021GMCSierra 3500 HD
        2022ChevroletSilverado 2500 HD
        2022ChevroletSilverado 3500 HD
        2022GMCSierra 2500 HD
        2022GMCSierra 3500 HD
        2023ChevroletSilverado 2500 HD
        2023ChevroletSilverado 3500 HD
        2023GMCSierra 2500 HD
        2023GMCSierra 3500 HD