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 1500 Exhaust Muffler 8 Cyl 4.8L Flowmaster

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 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(TM) 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

14 In Stock

$335.16 CAD

$402.19 CAD

Brand	Flowmaster
Part #	F1353072
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

14 In Stock

$335.16 CAD

$402.19 CAD

Brand	Flowmaster
Part #	F1353072
Condition	New
Warehouse	B

2003 Chevrolet Express 3500 Exhaust Muffler 8 Cyl 6.0L Flowmaster

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; 3.5 in. Offset In; 3.5 in. Offset Out; 409 Stainless Steel; Moderate Sound;
50 Series(TM) 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

1 In Stock

$421.23 CAD

$505.48 CAD

Brand	Flowmaster
Part #	F13853558
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

1 In Stock

$421.23 CAD

$505.48 CAD

Brand	Flowmaster
Part #	F13853558
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 Silverado 1500 Exhaust Muffler 8 Cyl 4.8L Flowmaster

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 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(TM) 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 Silverado 1500 Exhaust System Kit 8 Cyl 5.3L Flowmaster

Single; Dual Same Side Exit; Dual RH Before Rear Axle; Includes 2.5in. Tailpipes/Super 40 Series(TM) Muffler/3in. Embossed Stainless Tips;50 State Legal / California Emissions Compliant
American Thunder Muscle Truck Exhaust System; Single; Dual Same Side Exit; Dual RH Before Rear Axle; Includes 2.5in. Tailpipes/Super 40 Series™ Muffler/3in. Embossed Stainless Tips;
American Thunder Muscle Truck 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: Aggressive
- 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 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 16ga Aluminized Tubing
- Aggressive Exterior Exhaust Tone
- Moderate to Aggressive Exterior Exhaust Tone
- Includes Hangers and Hardware For Easy Installation
- Connects After Factory Catalytic Converter
- Dual Out Same Side Exit
- Dyno Tuned for Maximum Performance
- Premium Flowmaster Quality
For the person who wants the aggressive look of a NASCAR race truck along with all the benefits that a Flowmaster Cat-back exhaust system provides. D.O.S.S. (Dual out same side) systems are the perfect choice. The American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The exhaust system is constructed from 3.00-inch mandrel-bent aluminized steel tubing flowing into a Super 40 Series performance muffler for a deep powerful sound, then is finished off with dual 2.50-inch tailpipes and a pair of 3.00-inch polished stainless steel tips. Includes all necessary hardware, instructions and is covered by our 3-year Limited Warranty. For those who prefer full stainless steel construction and a Lifetime Limited Warranty, check out part# 817395. Notes: Fits both 2/4 wheel drive models with extended cab/short bed configuration on a 143.5-inch wheelbase.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:

15842, 65518, 817395

Additional Fitment Information:

Vehicle	Block	CC	Engine	Bed Length	Sub Model	Body	CID
2003 - Chevrolet Silverado 1500	V	5328	8 Cyl 5.3L	78.0	Base	Extended Cab Pickup	325

Brand	Flowmaster
Part #	F1317395
Condition	New
Warehouse	B

2003 Chevrolet Silverado 2500 HD Exhaust System Kit 8 Cyl 6.0L Flowmaster

Single; Single Side Exit; Includes 3.5 in. Tubing/50 Series(TM) Big Block Muffler/4 in. Logo Embossed Stainless Tip;50 State Legal / California Emissions Compliant Factory Dual Inlet Muffler Only
American Thunder Cat Back Exhaust System; Single; Single Side Exit; Includes 3.5 in. Tubing/50 Series™ Big Block Muffler/4 in. Logo Embossed Stainless Tip;
American Thunder Cat Back Exhaust System
Product Attributes:
- Tip Quantity: 1
- Exhaust Type: Single
- California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
- California Proposition 65 Chemical Name 1: Nickel (metallic)
- Sound Level: Aggressive
- 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: 50 Series Big Block
- Inlet Inside Diameter: N/a
- Exit Position: Single Side
- Muffler Count: 1
- Single or Dual: Single
- System Type: Cat Back
- Inlet Position: Dual
- Muffler Part Number: Kit Only
Features:
- Mandrel Bent 16ga Aluminized Tubing
- Moderate Exterior Exhaust Tone
- Includes Hangers And Hardware For Easy Installation
- Dyno Tuned for Maximum Performance
- Premium Flowmaster Quality
- 3 Year Limited Warranty
- Made in the USA
For the person who wants a subtle custom appearance with all the benefits that a Flowmaster Cat-back exhaust system provides. This American Thunder system for the 2001-2006 (2007 Classic) Chevrolet Silverado, GMC Sierra 2500HD/3500HD with 6.0L or 8.1L engine with dual inlet muffler, delivers a moderate interior tone with a deep powerful exterior tone and is suited to the enthusiast who wants their performance to be heard. The system attaches to the back of the catalytic converter with a dual inlet 50 Series Big Block muffler for a deep powerful sound without being obnoxious. Includes a large custom formed aluminum heat shield with stainless clamps and easily attaches directly to the muffler body. The custom bent 3.50-inch aluminized steel tailpipe uses the factory hanger locations for an easy installation and exits out behind the right side rear wheel which is ideal for towing. The tailpipe is finished off with a large 4.00-inch polished 304 stainless steel tip embossed with the Flowmaster logo. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts, hardware and easy to follow instructions for a trouble free installation. Covered by our 3-year Limited Warranty. Check out system #817328 if you prefer a Stainless Steel exhaust system that is covered with a Lifetime Limited Warranty.
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:

14294, 15789, 15829, 17800769, 39378, 615549, 817328

Additional Fitment Information:

Vehicle	Block	CC	Engine	Bed Length	Sub Model	Body	CID
2003 - Chevrolet Silverado 2500 HD	V	5967	8 Cyl 6.0L	96.0	Base	Extended Cab Pickup	364

Brand	Flowmaster
Part #	F1317328
Condition	New
Warehouse	B

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

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 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(TM) 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 4.8L Flowmaster

3.0 To 2.5 in. Tubing; 409 Stainless Steel; Dual Out Same Side; 4.0 in. Black Ceramic Coated Tips. Includes Hardware And Hangers
FlowFX Cat-Back Exhaust System; 3.0 To 2.5 in. Tubing; 409 Stainless Steel; Dual Out Same Side; 4.0 in. Black Ceramic Coated Tips. Includes Hardware And Hangers;
FlowFX Cat-Back Exhaust System
Product Attributes:
- Tubing Diameter: 3.000 In. / 2.500 In.
- Exhaust Type: Cat-back
- Exit Position: Dual Out Same Side
- WARNING CA Proposition 65: Yes
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Inlet Inside Diameter: 3.000 In. - 2.500 In.
Features:
- Max Increases Of Up To 14 Hp And 13 Lb-Ft Over The Stock Exhaust At The Rear Wheels
- Includes Complete Hardware And Factory Styled Hangers In The Stock Locations For An Easy Installation
- Performance Muffler Delivers A Deep/Moderate Performance Tone And Improves Exhaust Flow
This Flowmaster[R] FlowFX[R] cat-back exhaust system for the 1999-2006 GM 1500 trucks [2007 1500 Classic] with the 4.3, 4.8, or 5.3L engine [Crew Cab 5.5 bed, Extra Cab 6.5 bed only] is manufactured using durable 409 stainless steel throughout and features 3.00 to dual 2.50 in. mandrel bent pipes for better exhaust gas flow. A FlowFX straight-through muffler is used for a moderate to mild sound level and maximum performance. Maximum increases on the dyno revealed plus 14 hp and plus 13 lb.-ft at the rear wheels. This system exits out the same side, in front of the rear wheel on the passenger with dual 4.00 in. black ceramic tips for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmasters Lifetime Limited Warranty.