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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-17224
17224 American Thunder Cat-Back Exhaust System 1996-1999 GM Silverado/Sierra HD 5.7L/7.4L
$58495
Ships on Oct 12, 2026
Lowest Price GuaranteeGM
American Thunder Cat-Back Exhaust System1996-1999 GM Silverado/Sierra HD 5.7L/7.4L 3" Tubing Tips Not Included Single Side Exit 50 Series Big Block Muffler Aluminized Steel
FLOWMASTER MUFFLERS 17224 Features:
This Flowmaster American Thunder® cat-back exhaust system is custom designed for 1996-1999 Chevrolet Silverado and GMC Sierra 2500/3500 trucks with the 5.7L and 7.4L engine is perfect for the person looking for a moderate sound level inside and outside of the truck, with all of the performance benefits that expect from Flowmaster®. This bolt-on emissions-legal system features a dual 3.00-inch inlet 50 Series Big Block™ muffler for a deep powerful tone and includes an aluminum heat shield and stainless steel clamps. The single 3.00-inch aluminized steel mandrel-bent tailpipe uses the factory hanger locations and is finished off with a turndown style tip that exits behind the right rear wheel which is ideal for towing. The exhaust system is covered by our 3-year Limited Warranty and includes all necessary parts and hardware for a quick and easy installation you can do at home. Notes: Fits 2/4 wheel drive extended cab/long bed configuration and Crew Cab Dually. Fits 155-inch and 168-inch wheel bases.- Includes an Aluminum Heat Shield and Stainless Steel Clamps
- Includes Hangers and Hardware for an Easy Installation
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- 50 Series Big Block Series Performance Muffler
- Dyno Tuned for Maximum Performance
- Uses the Factory Hanger Locations
- Moderate Exterior Exhaust Tone
- Easy Installation
Part TypeExhaust System
BrandFLOWMASTER
Package Height10.5
Package Width14.5
Package Length58.0
Weight50.0 PG
Tailpipe Diameter (In.)3
Muffler Inlet Inside Diameter3 in.
Hangers IncludedYes
Main Piping Diameter3 in.
Tail Pipe QuantitySingle
Inlet TypeClamp-On
Catalytic Converter Quantity0
Exit LocationPassenger side
Inlet QuantityTwo
Muffler Body Length22.25 in.
Sound LevelModerate
Muffler Body MaterialAluminized Steel
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
System FinishAluminized
Muffler Quantity1
Muffler Inlet Outside Diameter3.13 in.
Exit QuantityOne
Muffler Flanged OutletNo
Tip QuantityNone
Exhaust TypeSingle
Catalytic Converter IncludedNo
Heat Shield IncludedNo
Part CategoryPerformance Parts
Hardware IncludedYes
Exhaust Tip Quantity0
Muffler Inlet LocationDual
Valve IncludedNo
Muffler TypeChambered
Pipe MaterialAluminized Steel
Muffler Body Width12 in.
Tail Pipe Tapered OutletNo
Muffler Body ShapeOval
Mounting Bracket IncludedNo
Muffler Outlet Quantity1
Muffler FinishBlack High-Temperature Paint Finish
Inlet Diameter2.75 in.
Clamps IncludedYes
Muffler StyleChambered
FinishAluminized
Exit StyleSingle Out Side
Muffler Body Height5 in.
Tip IncludedNo
Clamping TypeU-Bolt
Muffler Flanged InletNo
Spring Bolt Kit IncludedNo
Muffler Series50 Series Big Block
QuantitySold as a kit
Muffler IncludedYes
System StyleCat Back
Tail Pipe Outlet Outside Diameter3 in.
Muffler ConfigurationDual inlet/Single outlet
System MaterialSteel
Valve TypeNot Applicable
Intermediate Pipe Diameter2.5 in (63.5 mm)
Part FitmentDirect Fit
Vendor Part Number17224
Package Qty1
Package TypeEA
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