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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-17430
17430 American Thunder Cat-Back Exhaust System 2007-2008 GM Tahoe/Yukon 4.8L/5.3L
$77995
Ships on Sep 14, 2026
Lowest Price GuaranteeGM
American Thunder Cat-Back Exhaust System2007-2008 GM Tahoe/Yukon 4.8L/5.3L 3" Tubing 3" Polished SS Tips Dual Side Exit Super 50 Series Muffler Aluminized Steel
FLOWMASTER MUFFLERS 17430 Features:
For the person who is looking for an aluminized steel cat-back exhaust system with an aggressive exterior tone and moderate interior tone. The American Thunder® system is heavy 16-gauge mandrel-bent aluminized steel tubing for durability and maximum performance. Includes a Super 50™ Series performance muffler for that perfect blend of a deep aggressive exterior sound, with a moderate interior tone that won't drive you out of the cab when having a conversation. The dual 2.50-inch tailpipes clear the factory spare tire, use the factory hanger locations and exit on the sides behind the rear wheels. The system is finished off with a pair of highly polished 3.00-inch 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. Covered by our 3-year Limited Warranty.- Includes Hangers and Hardware for an Easy Installation
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- Dual 3.00-inch Polished Stainless Steel Tips
- Dyno Tuned for Maximum Performance
- Super 50 Series Performance Muffler
- Uses the Factory Hanger Locations
- Moderate Exterior Exhaust Tone
- Quick and Easy Installation
- 3-year Limited Warranty
Part TypeExhaust System
BrandFLOWMASTER
Package Height11.5
Package Width15.5
Package Length58.0
Weight61.85 PG
Tailpipe Diameter (In.)2.5
Muffler Inlet Inside Diameter3 in.
Hangers IncludedYes
Main Piping Diameter3 in.
Tail Pipe QuantityDual
Inlet TypeFlanged
Tip CutSlant
Exhaust Tip Material304 Stainless Steel
Catalytic Converter Quantity0
Exit LocationSplit side
Inlet QuantityOne
Muffler Body Length17.25 in.
Sound LevelAggressive / Moderate
Muffler Body MaterialAluminized Steel
Exhaust Tip CutAngled
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
System FinishAluminized
Muffler Quantity1
Muffler Inlet Outside Diameter3.13 in.
Exit QuantityTwo
Tip MaterialStainless steel
Muffler Flanged OutletNo
Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust TypeSingle
Catalytic Converter IncludedNo
Heat Shield IncludedNo
Part CategoryPerformance Parts
Hardware IncludedYes
Exhaust Tip WallSingle Wall
Exhaust Tip Quantity2
Exhaust Tip EdgeRolled Edge
Valve IncludedNo
Muffler TypeChambered
Pipe MaterialAluminized Steel
Muffler Body Width10 in.
Tail Pipe Tapered OutletNo
Muffler Body ShapeOval
Mounting Bracket IncludedYes
Muffler FinishBlack High-Temperature Paint Finish
Inlet Diameter3 in.
Clamps IncludedYes
Muffler StyleChambered
Tip Outlet Size3 in (76.2 mm)
FinishAluminized
Exit StyleDual Out Side
Muffler Body Height5 in.
Tip IncludedYes
Clamping TypeFlat Band
Muffler Flanged InletNo
Spring Bolt Kit IncludedNo
Muffler SeriesSuper 50 Series
QuantitySold as a kit
Muffler IncludedYes
Exhaust Tip ConnectionClamp-On
System StyleCat Back
Tail Pipe Outlet Outside Diameter2.50 in.
Muffler ConfigurationSingle inlet/Dual outlet
System MaterialSteel
Valve TypeNot Applicable
Tip Edge StyleNon-rolled edge
Tip ShapeRound
Intermediate Pipe Diameter3 in (76.2 mm)
Exhaust Tip Diameter3 in.
Part FitmentDirect Fit
Vendor Part Number17430
Package Qty1
Package TypeEA
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