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5" Aluminized Downpipe Back Single NO Muffler
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        5" Aluminized Downpipe Back Single NO Muffler | 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO)

        SKU: 531111

        Unlock the full potential of your 6.6L DURAMAX engine with our 5" Aluminized Downpipe Back Single NO Muffler exhaust system, crafted from advanced aluminized steel for durability and performance. Enjoy easy installation with included clamps and precise pre-weld contour bends, while lowering exhaust gas temperatures and enhancing airflow for a significant horsepower boost. Don’t compromise on quality; upgrade to this performance exhaust designed specifically for non-registered race vehicles and roar with distinctive power on the track. Order yours today!

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        Mel’s Manufacturing
        Vehicle Specific
        Check if this part fits your vehicle.
        • Brand: Mel’s Manufacturing
          • 3% off
          $890.00 save $26.70
        • $863.30

        Constructed with advanced 16 gauge aluminized steel or durable T409 stainless steel, this high-performance exhaust system is engineered for ease of installation, featuring included clamps and pre-weld contour bends for a precise fit.

        Experience a significant enhancement in your vehicle's performance, with lowered exhaust gas temperatures and improved airflow that unleashes the power of your 6.6L DURAMAX engine.

        Designed specifically for non-registered race vehicles on closed-course events, this exhaust system not only amplifies your horsepower but also delivers a distinctive sound that performance enthusiasts crave. Don't settle for ordinary, upgrade to Mel’s Manufacturing's exhaust solution today!

          • SKU
            531111
          • Weight
            76 lbs
          • Manufacturer Part #
            601NM
        • 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
        2001ChevroletSilverado 2500 HD
        2001ChevroletSilverado 3500 HD
        2001GMCSierra 2500 HD
        2001GMCSierra 3500 HD
        2002ChevroletSilverado 2500 HD
        2002ChevroletSilverado 3500 HD
        2002GMCSierra 2500 HD
        2002GMCSierra 3500 HD
        2003ChevroletSilverado 2500 HD
        2003ChevroletSilverado 3500 HD
        2003GMCSierra 2500 HD
        2003GMCSierra 3500 HD
        2004ChevroletSilverado 2500 HD
        2004ChevroletSilverado 3500 HD
        2004GMCSierra 2500 HD
        2004GMCSierra 3500 HD