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4" Stainless Downpipe Back Single NO Muffler
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        4" Stainless Downpipe Back Single NO Muffler | 2015.5-2016 GM 2500/3500 6.6L DURAMAX (FLO-PRO)

        SKU: 432019

        Elevate your truck's performance with the 4" Stainless Downpipe Back Single NO Muffler designed for 2015.5-2016 GM 2500/3500 6.6L DURAMAX. This high-performance exhaust system, crafted from 16 gauge aluminized steel and premium T409 stainless, ensures easy installation with included clamps, while enhancing horsepower and airflow for a palpable driving experience. Don't wait—unleash your vehicle's full potential with this exceptional exhaust solution today!

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        Mel’s Manufacturing
        Vehicle Specific
        Check if this part fits your vehicle.
        • Brand: Mel’s Manufacturing
          • 3% off
          $1110.00 save $33.30
        • $1076.70

        Engineered with 16 gauge aluminized steel and premium T409 stainless, this high-performance exhaust system revolutionizes installation with its included clamps and preweld contour bends.

        Experience an empowering surge in horsepower, lower exhaust gas temperatures, and enhanced airflow that brings your truck to life. With Mel's system, performance isn't just measurable; it's palpable.

        Tailored for competitive racing, it features OEM-style 3-bolt flange compatibility to ensure a seamless fit. Unleash your vehicle's potential—boost your performance today with this exceptional exhaust solution!

          • SKU
            432019
          • Weight
            67 lbs
          • Manufacturer Part #
            SS871NM
        • 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
        2015ChevroletSilverado 2500 HD
        2015ChevroletSilverado 3500 HD
        2015GMCSierra 2500 HD
        2015GMCSierra 3500 HD
        2016GMCSierra 2500 HD
        2016GMCSierra 3500 HD
        2016ChevroletSilverado 2500 HD
        2016ChevroletSilverado 3500 HD