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4" Stainless Downpipe Back Single With Muffler | 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO)
Transform your 2001-2004.5 GM 2500/3500 6.6L Duramax with our 4" Performance Exhaust System, expertly crafted from durable aluminized steel and T409 stainless steel for longevity and resilience. Enjoy the benefits of high flow performance and enhanced horsepower, while the innovative design featuring pre-welded contour bends and TorcTite clamps ensures a hassle-free installation. Don't miss your chance to elevate your vehicle's sound and power—upgrade today with Mel’s Manufacturing and unleash your Duramax's true potential!
This high-performance exhaust system crafted from 16-gauge aluminized steel and T409 stainless steel transforms your 2001-2004.5 GM 2500/3500 6.6L Duramax into a powerhouse.
The design emphasizes easy installation with innovative features like pre-welded contour bends and TorcTite clamps, ensuring a seamless fit and superior air flow. Experience a significant increase in horsepower, lower exhaust gas temperatures, and sound enhancements that resonate with every rev.
Elevate your vehicle’s performance and unleash its true potential with Mel’s Manufacturing. Tailored for closed-course competition environments, this system provides the competitive edge you need. Seize the opportunity to enhance your driving experience today!
- MaterialAluminized, Stainless
- MufflerWith Muffler, Without Muffler
- BrandMel’s Manufacturing
- ManufacturerMel's Manufacturing
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.
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 TypeVehicle Specific
Year | Make | Model | Notes |
---|---|---|---|
2001 | GMC | Sierra 2500 | |
2001 | GMC | Sierra 3500 HD | |
2001 | GMC | Sierra 2500 HD | |
2001 | Chevrolet | Silverado 2500 | |
2001 | Chevrolet | Silverado 3500 HD | |
2001 | Chevrolet | Silverado 2500 HD | |
2002 | GMC | Sierra 2500 | |
2002 | GMC | Sierra 3500 HD | |
2002 | GMC | Sierra 2500 HD | |
2002 | Chevrolet | Silverado 2500 | |
2002 | Chevrolet | Silverado 3500 HD | |
2002 | Chevrolet | Silverado 2500 HD | |
2003 | GMC | Sierra 2500 | |
2003 | GMC | Sierra 3500 HD | |
2003 | GMC | Sierra 2500 HD | |
2003 | Chevrolet | Silverado 2500 | |
2003 | Chevrolet | Silverado 3500 HD | |
2003 | Chevrolet | Silverado 2500 HD | |
2004 | GMC | Sierra 2500 | |
2004 | GMC | Sierra 3500 HD | |
2004 | GMC | Sierra 2500 HD | |
2004 | Chevrolet | Silverado 2500 | |
2004 | Chevrolet | Silverado 3500 HD | |
2004 | Chevrolet | Silverado 2500 HD |