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5" Stainless Downpipe Back Single With Muffler
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        5" Stainless Downpipe Back Single With Muffler | 2017-2019 GM 2500/3500 6.6L DURAMAX L5P (FLO-PRO)

        SKU: 532009

        Upgrade your vehicle with the 5" Stainless Downpipe Back Single With Muffler, designed specifically for 2017-2019 GM 2500/3500 6.6L Duramax L5P models. This high-performance exhaust system, crafted from durable aluminized steel or stainless steel, ensures easy installation while enhancing airflow and lowering exhaust temperatures for peak performance. Unleash the true power of your Duramax and enjoy a deep, resonant sound—don’t miss out on this essential upgrade for serious motorsport enthusiasts!

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        Mel’s Manufacturing
        Vehicle Specific
        Check if this part fits your vehicle.
        • Brand: Mel’s Manufacturing
          • 3% off
          $1370.00 save $41.10
        • $1328.90

        Manufactured from 16 gauge aluminized steel or T409 stainless steel, this high-performance exhaust system promises effortless installation with its included clamps and expertly crafted contour bends. Experience enhanced vehicle performance with increased airflow and lower exhaust gas temperatures, ensuring your Duramax-powered truck runs efficiently and powerfully.

        The design includes OEM-style flanges and contour bent hangers, making it exceptionally durable for off-road and competition use. Please note that this system is suited for models with the OEM 4-bolt flange directly connected to the turbo pipe.

        Elevate your vehicle’s capabilities and enjoy the deep, resonant sound that comes from Mel's innovative engineering. For motorsport use only, this exhaust upgrade is a must-have for serious enthusiasts looking for an edge on the track!

          • SKU
            532009
          • Weight
            88 lbs
          • Manufacturer Part #
            SS680
        • 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
        2017ChevroletSilverado 2500 HD
        2017ChevroletSilverado 3500 HD
        2017GMCSierra 2500 HD
        2017GMCSierra 3500 HD
        2018ChevroletSilverado 2500 HD
        2018ChevroletSilverado 3500 HD
        2018GMCSierra 2500 HD
        2018GMCSierra 3500 HD
        2019ChevroletSilverado 2500 HD
        2019ChevroletSilverado 3500 HD
        2019GMCSierra 2500 HD
        2019GMCSierra 3500 HD