2003 Chevrolet Flowmaster Parts

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Avalanche 1500 Express 2500 Express 3500 Monte Carlo SSR Silverado 1500 Silverado 1500 HD Silverado 2500 Silverado 2500 HD Silverado 3500 Suburban 1500 Tahoe

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2003 Chevrolet Silverado 2500 HD Exhaust Muffler 8 Cyl 6.6L Flowmaster

3.0 in. Offset Inlet/Offset Outlet; Case Dimensions 5 in. x 10 in. x 13.5 in.; 17.5 in. Overall Length; 409 Stainless Steel Not Direct Fit-Some Adaptation Required
Super 40™ Delta Flow Muffler; 3.0 in. Offset Inlet/Offset Outlet; Case Dimensions 5 in. x 10 in. x 13.5 in.; 17.5 in. Overall Length; 409 Stainless Steel;
Super 40™ Delta Flow Muffler
Product Attributes:
- Tip Quantity: 0
- Automotive Item Grade: High Performance
- Mount Type: Uses New Hangers (not Included)
- Muffler Type: Reflection
- California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
- Outlet Connection Type: Pipe
- California Proposition 65 Chemical Name 1: Nickel (metallic)
- Outlet Position: Offset
- Sound Level: Aggressive
- WARNING CA Proposition 65: Yes
- Fitment: Universal
- Body Width: 10.000 In.
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Muffler Series: Super 40 Series
- Overall Length: 19.500 In.
- Shape: Oval
- Inlet Type: Single Offset
- Inlet Position: Offset
- Body Length: 13.500 In.
- Inlet Connection Type: Pipe
- Outlet Type: Single Offset Outlet
Features:
- Durable Fully Welded 16ga Stainless Steel
- Limited Lifetime Warranty
- Deep Aggressive to Moderate Exhaust Note
- Moderate Interior Resonance
- Excellent Performance On High Horsepower Vehicles
- Race Proven Patented Delta Flow® Technology
- No Internal Packing To Blowout
- Premium Flowmaster Quality
Developed from our Top Ten race muffler lineup for use on the street/strip, the Super 40 features Flowmasters Delta Flow technology. Its larger case profile provides the best of both worlds of performance and sound, especially on forced induction and high horsepower vehicles. The Super 40 has that deep powerful sound of the Original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow technology. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:

953048

Additional Fitment Information:

Vehicle	Block	CC	Engine	Sub Model	CID
2003 - Chevrolet Silverado 2500 HD	V	6599	8 Cyl 6.6L	LS	403

5 In Stock

$233.98 CAD

$280.78 CAD

Brand	Flowmaster
Part #	F13853048
Condition	New
Warehouse	B

2003 Chevrolet Silverado 1500 Exhaust Muffler 8 Cyl 4.8L Flowmaster

3.0 in. Center Inlet/Offset Outlet; Case Dimensions 5 in. x 10 in. x 13.5 in.; 19.5 in. Overall Length; Aluminized Steel
Super 40™ Delta Flow Muffler; 3.0 in. Center Inlet/Offset Outlet; Case Dimensions 5 in. x 10 in. x 13.5 in.; 19.5 in. Overall Length; Aluminized Steel;
Super 40™ Delta Flow Muffler
Product Attributes:
- Tip Quantity: 0
- Outlet Position: Offset
- Sound Level: Aggressive
- WARNING CA Proposition 65: No
- Body Width: 10.000 In.
- Muffler Series: Super 40 Series
- Overall Length: 19.500 In.
- Shape: Oval
- Inlet Type: Single Center
- Inlet Position: Center
- Body Length: 13.500 In.
- Outlet Type: Single Offset Outlet
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Deep Aggressive to Moderate Exhaust Note
- Moderate Interior Resonance
- Excellent Performance On High Horsepower Vehicles
- Race Proven Patented Delta Flow® Technology
- No Internal Packing To Blowout
- Premium Flowmaster Quality
- Noticeable Interior Resonance
The Super 40 features Flowmasters Delta Flow technology. Its larger case profile provides the best of both worlds of performance and sound. The Super 40 has that deep powerful sound of the Original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow technology. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	Sub Model	CID
2003 - Chevrolet Silverado 1500	V	-	8 Cyl 4.8L	Base	294

4 In Stock

$202.27 CAD

$242.72 CAD

Brand	Flowmaster
Part #	F13953047
Condition	New
Warehouse	B

2003 Chevrolet Silverado 1500 Exhaust Muffler 8 Cyl 4.8L Flowmaster

3.0 in. Center Inlet/Offset Outlet; Case Dimensions 5 in. x 10 in. x 22 in.; 28 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
70 Series™ Big Block II Muffler; 3.0 in. Center Inlet/Offset Outlet; Case Dimensions 5 in. x 10 in. x 22 in.; 28 in. Overall Length; Aluminized Steel;
70 Series™ Big Block II Muffler
Product Attributes:
- Tip Quantity: 0
- Automotive Item Grade: High Performance
- Mount Type: Uses New Hangers (not Included)
- Muffler Type: Reflection
- Outlet Connection Type: Pipe
- Outlet Position: Offset
- Sound Level: Mild
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 10.000 In.
- Muffler Series: 70 Series Big Block
- Overall Length: 28.000 In.
- Shape: Oval
- Inlet Type: Single Center
- Inlet Position: Center
- Body Length: 22.000 In.
- Inlet Connection Type: Pipe
- Outlet Type: Single Offset Outlet
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Stock to Mild Exterior Exhaust Tone
- Minimal Interior Resonance
- Recommended For SUV/Trucks/Motorhomes/Tow Vehicles
- Improved HP/TQ and Potential Mileage Improvement
- Race Proven Patented Delta Flow® Technology
- Premium Flowmaster Quality
The 70 series utilizes Flowmasters Delta Flow technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUVs, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	Sub Model	CID
2003 - Chevrolet Silverado 1500	V	-	8 Cyl 4.8L	Base	294

16 In Stock

$335.16 CAD

$402.19 CAD

Brand	Flowmaster
Part #	F1353072
Condition	New
Warehouse	B

2003 Chevrolet Silverado 1500 HD Exhaust Muffler 8 Cyl 6.0L Flowmaster

3.0 in. Dual Inlet/3.5 in. Offset Outlet; Case Dimensions 5 in. x 12 in. x 22 in.; 28 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
50 Series™ Big Block Muffler; 3.0 in. Dual Inlet/3.5 in. Offset Outlet; Case Dimensions 5 in. x 12 in. x 22 in.; 28 in. Overall Length; Aluminized Steel;
50 Series™ Big Block Muffler
Product Attributes:
- Tip Quantity: 0
- Automotive Item Grade: High Performance
- Mount Type: Uses New Hangers (not Included)
- Muffler Type: Reflection
- Outlet Connection Type: Pipe
- Outlet Position: Offset
- Sound Level: Mild
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 12.000 In.
- Muffler Series: 50 Series Big Block
- Overall Length: 28.000 In.
- Shape: Oval
- Inlet Type: Dual
- Inlet Position: Dual
- Body Length: 22.000 In.
- Inlet Connection Type: Pipe
- Outlet Type: Single Offset Outlet
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Stock to Mild Exterior Exhaust Tone
- Reduced Interior Resonance
- Improved HP/TQ and Potential Mileage Improvement
- Race Proven Patented Delta Flow® Technology
- Premium Flowmaster Quality
- Recommended For SUV/Trucks/Motorhomes/Tow Vehicles
- Minimal Interior Resonance
The 50 Series Big Block muffler is made for more than just big cubic inch engine applications. Its large case size with internal tuning chamber provides mileage and power gains along with maximum sound control for a quiet interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUVs, RVs, and tow vehicles. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
2003 - Chevrolet Silverado 1500 HD	V	5967	8 Cyl 6.0L	364

3 In Stock

$421.23 CAD

$505.48 CAD

Brand	Flowmaster
Part #	F13530513
Condition	New
Warehouse	B

2003 Chevrolet Silverado 2500 HD Exhaust Muffler 8 Cyl 6.6L Flowmaster

3.5 in. Offset Inlet/Offset Outlet; Case Dimensions 5 in. x 10 in. x 18 in.; 24 in. Overall Length; Aluminized Steel
50 Series™ Heavy Duty Muffler; 3.5 in. Offset Inlet/Offset Outlet; Case Dimensions 5 in. x 10 in. x 18 in.; 24 in. Overall Length; Aluminized Steel;
50 Series™ Heavy Duty Muffler
Product Attributes:
- Tip Quantity: 0
- Automotive Item Grade: High Performance
- Mount Type: Uses New Hangers (not Included)
- Muffler Type: Reflection
- Outlet Connection Type: Pipe
- Outlet Position: Offset
- Sound Level: Moderate
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 10.000 In.
- Muffler Series: 50 Series Hd
- Overall Length: 23.000 In.
- Shape: Oval
- Inlet Type: Single Offset
- Inlet Position: Offset
- Body Length: 18.000 In.
- Inlet Connection Type: Pipe
- Outlet Type: Single Offset Outlet
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Aggressive And Powerful Exterior Exhaust Tone
- Notable Interior Resonance
- Excellent Street/Strip And Off Road Application
- No Internal Packing To Blowout
- The Original Two Chamber Design
- Premium Flowmaster Quality
- Improved HP/TQ and Engine Efficiency
Designed primarily for todays heavy duty gas and diesel trucks, this muffler will deliver improved performance, throttle response and mileage. Featuring a deeper, moderate tone with minimal resonance, it is ideal for trucks with modified engines. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	Sub Model	CID
2003 - Chevrolet Silverado 2500 HD	V	6599	8 Cyl 6.6L	LS	403

2 In Stock

$374.42 CAD

$449.30 CAD

Brand	Flowmaster
Part #	F13953558
Condition	New
Warehouse	B

2003 Chevrolet Monte Carlo Exhaust Muffler 6 Cyl 3.4L Flowmaster

2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
40 Series™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel;
40 Series™ Delta Flow Muffler
Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Aggressive
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 13.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- Outlet Connection Type: Pipe
- Muffler Series: 40 Series Delta Flow
- Overall Length: 19.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: 2.250 In.
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
Features:
- Durable Fully Welded 16ga Aluminized Steel
- Race Proven Patented Delta Flow® Technology
- Excellent Street/Strip And Off Road Application
- No Internal Packing To Blowout
This two chamber design incorporates Flowmasters Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
2003 - Chevrolet Monte Carlo	V	-	6 Cyl 3.4L	207

Brand	Flowmaster
Part #	F13942441
Condition	New
Warehouse	B

2003 Chevrolet Silverado 1500 Exhaust Muffler 8 Cyl 4.8L Flowmaster

3.0 in. Center Inlet/Offset Outlet; Case Dimensions 5 in. x 10 in. x 17 in.; 23 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
50 Series™ SUV Muffler; 3.0 in. Center Inlet/Offset Outlet; Case Dimensions 5 in. x 10 in. x 17 in.; 23 in. Overall Length; Aluminized Steel;
50 Series™ SUV Muffler
Product Attributes:
- Tip Quantity: 0
- Automotive Item Grade: High Performance
- Mount Type: Uses New Hangers (not Included)
- Muffler Type: Reflection
- Outlet Connection Type: Pipe
- Outlet Position: Offset
- Sound Level: Mild
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 10.000 In.
- Muffler Series: Super 50 Series
- Overall Length: 23.000 In.
- Shape: Oval
- Inlet Type: Single Center
- Inlet Position: Center
- Body Length: 17.000 In.
- Inlet Connection Type: Pipe
- Outlet Type: Single Offset Outlet
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Mild to Moderate Exterior Exhaust Tone
- Minimal Interior Resonance
- Excellent Choice for Large Displacement Vehicles
- Improved HP/TQ and Potential Mileage Improvement
- Race Proven Patented Delta Flow® Technology
- Premium Flowmaster Quality
The Super 50 series muffler is a larger version of Flowmasters 50 series Delta Flow muffler. Originally designed for trucks and SUVs, it is also well suited to muscle car and high performance applications. In addition, the larger case size significantly reduces interior resonance and provides a deep, rich tone along with mileage and power gains. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	Sub Model	CID
2003 - Chevrolet Silverado 1500	V	-	8 Cyl 4.8L	Base	294

Brand	Flowmaster
Part #	F1353057
Condition	New
Warehouse	B

2003 Chevrolet Express 3500 Exhaust Muffler 8 Cyl 6.0L Flowmaster

3.5 in. Offset In; 3.5 in. Offset Out; 409 Stainless Steel; Moderate Sound
50 Series™ Heavy Duty Muffler; 3.5 in. Offset In; 3.5 in. Offset Out; 409 Stainless Steel; Moderate Sound;
50 Series™ Heavy Duty Muffler
Product Attributes:
- Tip Quantity: 0
- Automotive Item Grade: High Performance
- Muffler Type: Reflection
- California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
- Outlet Connection Type: Pipe
- California Proposition 65 Chemical Name 1: Nickel (metallic)
- Outlet Position: Offset
- Sound Level: Moderate
- WARNING CA Proposition 65: Yes
- Fitment: Universal
- Body Width: 10.000 In.
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Muffler Series: 50 Series Hd
- Overall Length: 18.000 In.
- Shape: Oval
- Inlet Type: Single Offset
- Inlet Position: Offset
- Body Length: 18.000 In.
- Inlet Connection Type: Pipe
- Outlet Type: Single Offset Outlet
Features:
- Durable Fully Welded 409 Stainless Steel
- Limited Lifetime Warranty
- Moderate to Aggressive Exterior Exhaust Tone
- Reduced Interior Resonance
- Excellent Choice For Street Rods Cars and Trucks
- Improved HP/TQ and Potential Mileage Improvement
- Race Proven Patented Delta Flow® Technology
- Premium Flowmaster Quality
- Recommended for 6.2L Ford
- 6.4L Ram and 6.2L GM Trucks
- Mild Interior Resonance
Flowmasters stainless steel 50 Series HD muffler is designed for todays heavy duty gas and diesel trucks. This muffler delivers improved performance, throttle response and mileage. The 50 HD features a deep, moderate tone with minimal interior resonance and is ideal for trucks with modified engines. This muffler is constructed of 409S Stainless Steel with a 3.5 in. inlet and outlet, and is covered by Flowmasters Lifetime Limited Warranty.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
2003 - Chevrolet Express 3500	V	5967	8 Cyl 6.0L	364

Brand	Flowmaster
Part #	F13853558
Condition	New
Warehouse	B

2003 Chevrolet Silverado 1500 HD Exhaust Muffler 8 Cyl 6.0L Flowmaster

3.0 in. Dual Inlet/2.5 in. Dual Outlet; Case Dimensions 5 in. x 12 in. x 22 in.; 28 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
50 Series™ Big Block Muffler; 3.0 in. Dual Inlet/2.5 in. Dual Outlet; Case Dimensions 5 in. x 12 in. x 22 in.; 28 in. Overall Length; Aluminized Steel;
50 Series™ Big Block Muffler
Product Attributes:
- Tip Quantity: 0
- Automotive Item Grade: High Performance
- Mount Type: Uses New Hangers (not Included)
- Muffler Type: Reflection
- Outlet Connection Type: Pipe
- Outlet Position: Dual
- Sound Level: Mild
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 12.000 In.
- Muffler Series: 50 Series Big Block
- Overall Length: 28.000 In.
- Outlet Outside Diameter: 2.500 In.
- Shape: Oval
- Inlet Type: Dual
- Inlet Position: Dual
- Body Length: 22.000 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Outlet Type: Dual Outlet
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Stock to Mild Exterior Exhaust Tone
- Reduced Interior Resonance
- Recommended For SUV/Trucks/Motorhomes/Tow Vehicles
- Improved HP/TQ and Potential Mileage Improvement
- Race Proven Patented Delta Flow® Technology
- Premium Flowmaster Quality
The 50 Series Big Block muffler is made for more than just big cubic inch engine applications. Its large case size with internal tuning chamber provides mileage and power gains along with maximum sound control for a quiet interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUVs, RVs, and tow vehicles. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

Additional Fitment Information:

Vehicle	Block	CC	Engine	CID
2003 - Chevrolet Silverado 1500 HD	V	5967	8 Cyl 6.0L	364

Brand	Flowmaster
Part #	F13530504
Condition	New
Warehouse	B

2003 Chevrolet Silverado 1500 Exhaust System Kit 8 Cyl 5.3L Flowmaster

Single; Dual Rear Same Side Exit Includes 2.5 in. Outlets/40 Series(TM) Muffler/Tube Extensions/3.0 in. Logo Embossed Stainless Tips;50 State Legal / California Emissions Compliant With Single Flanged Catalytic Converter
American Thunder Cat Back Exhaust System; Single; Dual Rear Same Side Exit Includes 2.5 in. Outlets/40 Series™ Muffler/Tube Extensions/3.0 in. Logo Embossed Stainless Tips;
American Thunder Cat Back Exhaust System
Product Attributes:
- Tip Quantity: 2
- Tubing Diameter: 2.500 In.
- Exhaust Type: Single
- California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
- California Proposition 65 Chemical Name 1: Nickel (metallic)
- Sound Level: Moderate
- WARNING CA Proposition 65: Yes
- Exhaust Series: American Thunder
- Heat Shield Attached: No
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Exit Style: Straight
- Muffler Series: Super 40 Series
- Inlet Inside Diameter: 2.500 In.
- Outlet Outside Diameter: 2.500 In.
- Tail Pipe Diameter: 2.500 In.
- Exit Position: Dual Rear Same Side
- Muffler Count: 1
- Single or Dual: Dual
- System Type: Cat Back
- Muffler Part Number: Kit Only
- Outlet Diameter: 2.500 In.
Features:
- Mandrel Bent 16 Gauge 409 Stainless Tubing
- Includes Hangers And Hardware For Easy Installation
- Dyno Tuned for Maximum Performance
- Premium Flowmaster Quality
- 3 Year Limited Warranty
- Made in the USA
This Flowmaster system is for the person who is looking for a stainless steel cat-back exhaust system with an aggressive exterior tone and moderate interior tone for the 1999 to 2007* (2007 Classic Only) GM 1500 Extended Cab/Short Bed trucks with the 4.3L, 4.8L or 5.3L engines. The American Thunder system is heavy 16-gauge mandrel-bent stainless steel tubing for durability and maximum performance. Includes a stainless steel Super 40 Series performance muffler for that perfect blend of a deep aggressive exterior sound, with a moderate interior tone that wont drive you out of the cab when having a conversation. The dual 2.50-inch tailpipes clear the factory spare tire and give you two choices of exit locations. Straight out the back for that true dual look, or exiting out each side behind the rear wheels, which is ideal for towing. The system is finished off with a pair of highly polished 304 stainless steel tips embossed with the Flowmaster name. Designed for an easy fit, these systems include all necessary parts, hardware and instructions for an easy installation you can do at home.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.