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Muffler for 2003 GMC Sierra 2500We have 34 Items In-stock. Select your vehicle's Submodel to continue.
Flowmaster - 50 Series Heavy Duty MufflersFLOWMASTER – 50 SERIES HEAVY-DUTY MUFFLERS
Flowmaster’s 50 Series Heavy-Duty mufflers turn your truck into something a little more enjoyable to drive, making it more fuel efficient, faster and easier on your vehicle’s powertrain – especially good when you’re under load or towing. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.
- Increases torque and horsepower while reducing noise – great for heavy-duty trucks
- 3-year warranty for aluminized steel, lifetime warranty for stainless steel
- Fully MIG-welded for maximum strength
- Come in stainless steel and 16-gauge aluminized steel
- Quick and easy installation
- Designed primarily for Dodge trucks with Hemis
- Increases torque, horsepower and fuel economy – perfect for tow vehicles/heavy loads
- Perfect for diesel and/or gas vehicles
- Features unique 3-chamber design
- Free Ground Shipping
- Low Price Guarantee
- SKU#: F13853558
- Product Fit: Universal
- Sound Level: Moderate
- Recommended Use: Performance
- Anticipated Ship Out Time: 1-2 Business Days
- Attachment Style: Weld-On
- Case Shape: Oval
- Height: 5 in.
- Inlet Location: Offset
- Inlet Quantity: Single
- Inlet Size: 3.5 in.
- Internal Construction: 3 Chamber
- Outlet Location: Offset
- Outlet Quantity: Single
- Outlet Size: 3.5 in.
- Overall Length: 18 in.
- Warranty: Lifetime Flowmaster Limited Warranty
- Width: 10 in.
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