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Vehicle Info NeededDYNOMAXPART NUMBER: 289-39378
Cat-Back Exhaust System Ultra-Flo Stainless System
$55299
Ships on 09/18/2026
Lowest Price GuaranteeGM
- Cat-Back Exhaust System
- Ultra-Flo Stainless System
- 2001-07 Silverado/Sierra 2500HD/3500 (2007 Classic only)
- 6.0L/8.1L Gas Engine
- Crew Cab Short Bed (Except 2500 Light Duty)
- Single Side Exit
- 5" Polished Stainless Tip
Dynomax's Ultra-Flo Stainless system is a Single 4" Cat-Back System with a 5" Polished Stainless Steel Tip and a Ultra Flo™ Welded Muffler.
Part TypeExhaust System
BrandDYNOMAX
Package Height11.0
Package Width23.0
Package Length59.0
Weight60.0 PG
Part CategoryPerformance Parts
Hardware IncludedYes
Tip IncludedYes
Tailpipe Diameter (In.)4
QuantitySold as a kit
Tip CutSlant
System FinishNatural
Muffler IncludedYes
Muffler QuantityOne
System StyleCat Back
Muffler ConfigurationSingle inlet/Single outlet
System MaterialStainless steel
Exit LocationPassenger side
Exit QuantityOne
Tip MaterialStainless steel
Tip Edge StyleNon-rolled edge
Tip QuantitySingle
Muffler StyleTurbo
Inlet QuantityOne
Tip ShapeRound
Tip Outlet Size5 in (127 mm)
Intermediate Pipe Diameter4 in (101.6 mm)
Exhaust TypeSingle
Vendor Part Number39378
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
