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818189 Outlaw Cat-Back Exhaust System; 1996-1999 GM 1500 trucks with 5.7-liter, Cat-Back, dual out rear or side exit
InfoVehicle Info Needed
FLOWMASTERPART NUMBER: 389-818189

818189 Outlaw Cat-Back Exhaust System; 1996-1999 GM 1500 trucks with 5.7-liter, Cat-Back, dual out rear or side exit

$1,04995
ShippingShips on 09/14/2026
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    Outlaw Cat-Back Exhaust System
  • 1996-1999 GM 1500 trucks with 5.7-liter, Cat-Back, dual out rear or side exit, stainless steel
  • Sold Individually

    Flowmaster 818189 Features:

    This Flowmaster® Outlaw cat-back exhaust system is for the 1996-1999 GM 1500 trucks with the 5.7-liter engine. This system is manufactured using durable 409 stainless steel tubing and is mandrel bent for better exhaust gas flow. A Super 10 Series muffler is used for an improved sound level and maximum performance. This system uses dual 4.5-inch black ceramic coated tips that can exit dual out the rear or dual out the side. 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. This system fits all single cab and extended cab models in both 2 and 4 wheel drive. Backed by Flowmaster's Lifetime Limited Warranty.

Part TypeExhaust System
BrandFLOWMASTER
Package Height15.25
Package Width16.25
Package Length59.75
Weight74.0 PG
Muffler Inlet Inside Diameter3 in.
Hangers IncludedYes
Main Piping Diameter3 in.
Tail Pipe QuantityDual
Inlet TypeClamp-On
Exhaust Tip Material304 Stainless Steel
Catalytic Converter Quantity0
Muffler Body Length6.50 in.
Sound LevelAggressive / Moderate
Muffler Body Material409 Stainless Steel
Exhaust Tip CutAngle
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
Muffler Quantity1
Muffler Inlet Outside Diameter3.13 in.
Muffler Flanged OutletNo
Exhaust Tip ResonatedNo
Muffler Outlet LocationDual
Catalytic Converter IncludedNo
Heat Shield IncludedNo
Part CategoryPerformance Parts
Exhaust Tip Quantity2
Muffler Inlet LocationCenter
Exhaust Tip FinishBlack Ceramic Coating
Exhaust Tip EdgeRolled
Valve IncludedNo
Muffler TypeReflection
Pipe Material409 Stainless Steel
Muffler Body Width9.50 in.
Tail Pipe Tapered OutletNo
Muffler Body ShapeOval
Mounting Bracket IncludedYes
Muffler Outlet Quantity1
Muffler FinishBlack High-Temperature Paint Finish
Mount TypeUses Factory Hangers
Inlet Diameter3 in.
Clamps IncludedYes
FinishNatural
Exit StyleDual Out Rear
Muffler Body Height4 in.
Clamping TypeFlat Band
Muffler Flanged InletNo
Spring Bolt Kit IncludedNo
Muffler Series10 Series
Muffler IncludedYes
Tail Pipe Outlet Outside Diameter3 in.
Valve TypeNot Applicable
Exhaust Tip Diameter4.50 in.
Part FitmentDirect Fit
Vendor Part Number818189
Package Qty1
Package TypeEA
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