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Exhaust System for 2003 GMC Sierra 1500 HD

We have 14 Items In-stock.

Gibson Exhaust System

Gibson Exhaust System, Gibson Dual Extreme, Aluminized Steel, Natural
Gibson Exhaust System Gibson Exhaust System
$392.69 List Price $731.53 Save $338.84 Availability: In Stock
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  • SKU#: G275571
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Each Rear Tire
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Dual inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Dual Sport, Aluminized Steel, Natural
Gibson Exhaust System Gibson Exhaust System
$503.27 List Price $896.01 Save $392.74 Availability: In Stock
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  • SKU#: G275207
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Rear Tire
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kits
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Dual inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Swept Side, Stainless Steel, Natural
Gibson Exhaust System Gibson Exhaust System
$759.08 List Price $1,052.32 Save $293.24 Availability: In Stock
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  • SKU#: G27615533
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 8-10 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Rear Tire
  • Exit Quantity: Single
  • Includes: Pipes, installation hardware, gaskets
  • Main Piping Diameter: 3 in.
  • Muffler Configuration: Dual Inlet and Single Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: One
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Swept Side, Aluminized Steel, Natural
Gibson Exhaust System Gibson Exhaust System
$413.72 List Price $772.74 Save $359.02 Availability: In Stock
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  • SKU#: G27315533
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Rear Tire
  • Exit Quantity: Single
  • Includes: Pipes, installation hardware, gaskets
  • Main Piping Diameter: 3.0 in.
  • Muffler Configuration: Dual Inlet and Single Outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: One
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Split Rear, Aluminized Steel, Natural
Gibson Exhaust System Gibson Exhaust System
$503.27 List Price $896.01 Save $392.74 Availability: In Stock
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  • SKU#: G275555
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Straight out the back
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kit, spare tire bracket
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Dual inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Dual Sport, Stainless Steel, Natural
Gibson Exhaust System Gibson Exhaust System
$629.17 List Price $1,131.02 Save $501.85 Availability: In Stock
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  • SKU#: G2765207
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate to Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: In Front of Rear Tire
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kit
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Dual inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Split Rear, Stainless Steel, Natural
Gibson Exhaust System Gibson Exhaust System
$626.25 List Price $1,131.02 Save $504.77 Availability: In Stock
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  • SKU#: G2765555
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Straight out the back
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kit, spare tire bracket
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Dual inlet and outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Gibson Exhaust System, Gibson Dual Extreme, Stainless Steel, Natural
Gibson Exhaust System Gibson Exhaust System
$534.31 List Price $953.99 Save $419.68 Availability: In Stock
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  • SKU#: G2765571
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Advertised Power Gains: 15-20 h.p.
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt-on
  • Exit Location: Behind Each Rear Tire
  • Exit Quantity: Dual
  • Includes: Pipes, zinc-plated factory style hangers, heavy-duty clamps, bolt kit, spare tire bracket
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Baffled and Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Non-Rolled
  • Tip Finish: Polished
  • Tip Length: 3.5 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Two
  • Tip Shape: Round
  • Warranty: Lifetime Gibson limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT

Magnaflow Exhaust System

Magnaflow Exhaust System, Magnaflow Performance, Stainless Steel, Natural
Magnaflow Exhaust System Magnaflow Exhaust System
$661.69 List Price $856.31 Save $194.62 Availability: In Stock
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  • SKU#: M6615782
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt/Clamp On
  • Exit Location: Rear (Passenger's Side)
  • Exit Quantity: Single
  • Main Piping Diameter: 3 in.
  • Muffler Configuration: Dual Inlet and Single Outlet
  • Muffler Finish: Polished
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Straight Thru
  • Notes: Includes: Mounting hardware, 5 x 11 x 22 in. muffler
  • System Type: Cat-Back
  • Tip Cut: Straight
  • Tip Diameter: 4 in.
  • Tip Edge Style: Rolled
  • Tip Finish: Polished
  • Tip Length: 12 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: 1
  • Tip Shape: Round
  • Warranty: Lifetime Magnaflow Limited Warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
Magnaflow Exhaust System, Magnaflow Performance, Stainless Steel, Natural
Magnaflow Exhaust System Magnaflow Exhaust System
$719.22 List Price $930.75 Save $211.53 Availability: In Stock
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  • SKU#: M6615828
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Bolt/Clamp On
  • Exit Location: Split Rear
  • Exit Quantity: Dual
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual Outlet
  • Muffler Finish: Polished
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Straight Thru
  • Notes: Includes: Mounting hardware, 5 x 8 x 18 in. muffler
  • System Type: Cat-Back
  • Tip Cut: Straight
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Rolled
  • Tip Finish: Polished
  • Tip Length: 18 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: 2
  • Tip Shape: Round
  • Warranty: Lifetime Magnaflow Limited Warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT

Flowmaster Exhaust System

Flowmaster Exhaust System, Flowmaster American Thunder, Aluminized Steel, Natural
Flowmaster Exhaust System Flowmaster Exhaust System
$437.60 List Price $572.02 Save $134.42 Availability: In Stock
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  • SKU#: F1317350
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Advertised Power Gains: Typically 5-7% increase over stock
  • Anticipated Ship Out Time: Same day - 1 business day
  • Attachment Style: Clamp-On or Weld-On (Recommended)
  • Exit Location: Single Side Exit
  • Exit Quantity: Single
  • Includes: Mounting Hardware
  • Main Piping Diameter: 3.5 in.
  • Muffler Configuration: Dual 3 In. Inlets, 3.5 In. Outlet
  • Muffler Finish: Natural
  • Muffler Material: Aluminized Steel
  • Muffler Quantity: One
  • Muffler Type: Chambered
  • Notes: Includes 50 Series Big Block Muffler
  • System Type: Cat-Back
  • Tip Cut: Straight
  • Tip Diameter: 4 in.
  • Tip Edge Style: Rolled
  • Tip Finish: Polished
  • Tip Length: 10 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: One
  • Tip Shape: Round
  • Warranty: Flowmaster 3-Year Limited Warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT

MBRP Exhaust System

MBRP Exhaust System, MBRP XP, Stainless Steel, Natural
MBRP Exhaust System MBRP Exhaust System
$519.99 List Price $642.34 Save $122.35 Availability: In Stock
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  • SKU#: M79S5008409
  • Emissions: 50-State Legal
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Bolt/Clamp On
  • Downpipe Diameter: 3.5 in.
  • Exit Location: Behind the rear tire
  • Exit Quantity: Single
  • Includes: Mounting Hardware
  • Main Piping Diameter: 4 in.
  • Muffler Configuration: Single Inlet and Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Louvered
  • System Type: Turbo-Back
  • Tip Cut: Straight
  • Tip Diameter: 5 in.
  • Tip Edge Style: Rolled
  • Tip Finish: Polished
  • Tip Length: 12 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Single
  • Tip Shape: Round
  • Warranty: Lifetime MBRP limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT
MBRP Exhaust System, MBRP Installer, Stainless Steel, Natural
MBRP Exhaust System MBRP Exhaust System
$474.99 List Price $586.75 Save $111.76 Availability: In Stock
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  • SKU#: M79S5008AL
  • Emissions: 50-State Legal
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Bolt/Clamp On
  • Exit Location: Split Rear
  • Exit Quantity: Dual
  • Includes: Mounting Hardware
  • Main Piping Diameter: 2.5 in.
  • Muffler Configuration: Single Inlet and Dual Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • Muffler Type: Chambered
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Rolled
  • Tip Finish: Polished
  • Tip Length: 12 in.
  • Tip Material: Stainless Steel
  • Tip Quantity: Dual
  • Tip Shape: Round
  • Warranty: Lifetime MBRP limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT

JBA Exhaust System

JBA Exhaust System, Stainless Steel, Natural, 50-State Legal
JBA Exhaust System JBA Exhaust System
$671.57 List Price $997.44 Save $325.87 Availability: In Stock
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  • SKU#: J21403032
  • Product Fit: Direct Fit
  • Quantity Sold: Assembly
  • Muffler Sound Level: Moderate
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 2-3 business days
  • Attachment Style: Clamp-on
  • EO Number: D-57-29 & D-57-25
  • Exit Location: After Rear Tire (Passenger Side)
  • Exit Quantity: Dual
  • Includes: Mounting Hardware
  • Main Piping Diameter: 3 in.
  • Muffler Configuration: Single Inlet and Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: Two
  • System Type: Cat-Back
  • Tip Cut: Angle
  • Tip Diameter: 3.5 in.
  • Tip Edge Style: Rolled
  • Tip Finish: Polished
  • Tip Material: Stainless Steel
  • Tip Quantity: Dual
  • Tip Shape: Round
  • Warranty: 1-year JBA limited warranty
see more Fits the following 2003 GMC Sierra 1500 HD submodels:
  • 8 Cyl 6.0L | SLE, SLT