
FLOWMASTERPART NUMBER: 389-818112
Outlaw Cat-Back Exhaust System fits Select Chevy Silverado, GMC Sierra 2500HD/3500HD Pickup Truck 6.6L (Crew Cab)
$1,04995
Truck Freight
1 left in stockGM
Outlaw Cat-Back Exhaust SystemFits Select GM Silverado, Sierra 2500HD/3500HD Pickup 6.6L (Gas) 3.500 in. Inlet Dual 3 in. Outlets 4 in. Polished Tips Dual Out Rear/Dual Out Side Exit
- Crew Cab w/6.5 ft. Bed & 159 in. W/B Only
Flowmaster 818112 Outlaw Cat-Back Exhaust System Features:
- Super 10 series performance muffler delivers an aggressive sound level
- Increases of up to 9 horsepower and 9 ft-lbs. of torque at the rear wheels over the factory exhaust
- 4 in. 304 Stainless steel tips can be configured to dual straight out the back, or dual out the sides behind the rear wheels
- Uses factory hanger locations
- 409S Stainless steel muffler and exhaust tubing
Note: Will Not Fit Models with 5th Wheel Hitch Installed.
Emissions: This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Part TypeExhaust System
BrandFLOWMASTER
Package Height19.0
Package Width19.5
Package Length57.13
Weight68.0 PG
Tailpipe Diameter (In.)3
Muffler Inlet Inside Diameter3.50 in.
Hangers IncludedYes
Main Piping Diameter3 in.
Tail Pipe QuantityDual
Inlet TypeFlanged
Inlet Size (In.)3.50
Tip CutAngle
Exhaust Tip Material304 Stainless Steel
Catalytic Converter Quantity0
Exit LocationDual side
Tip FinishPolished
Muffler Body Length6.50 in.
Sound LevelAggressive
Muffler Material409S Stainless Steel
Muffler Body Material409 Stainless Steel
UniversalNo
Hanger IncludedYes
Exhaust Tip CutAngled
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
Muffler Quantity1
Muffler Inlet Outside Diameter3.63 in.
Exit QuantityDual
Tip Material304 stainless steel
Muffler Flanged OutletNo
Tip QuantityDual
Exhaust Tip ResonatedNo
Muffler Outlet LocationDual
Catalytic Converter IncludedNo
Part CategoryPerformance Parts
Hardware IncludedYes
Exhaust Tip WallDouble Wall
Exhaust Tip Quantity2
Muffler Inlet LocationCenter
Muffler Body FinishBlack Painted
Exhaust Tip FinishPolished
Exhaust Tip EdgeAngle Cut
Valve IncludedNo
Muffler TypeChambered
Pipe Material409 Stainless Steel
Muffler Body Width9.50 in.
Tail Pipe Tapered OutletNo
Muffler Body ShapeOval
Mounting Bracket IncludedYes
Muffler Outlet Quantity2
Muffler FinishBlack High-Temperature Paint Finish
Mount TypeUses Factory Hangers
Inlet Diameter3.50 in.
Clamps IncludedYes
Muffler StyleReflection
Tip Outlet Size4 in (101.6 mm)
Horse Power Increase9 HP
FinishNatural
Exit StyleDual Out Rear
Muffler Body Height4 in.
Tip IncludedYes
Clamping TypeFlat Band
Muffler Flanged InletNo
Mandrel-BentYes
Spring Bolt Kit IncludedNo
Muffler Series10 Series
QuantitySold as a kit
Muffler IncludedYes
Exhaust Tip ConnectionClamp-On
System StyleCat-back
Tail Pipe Outlet Outside Diameter3 in.
Muffler ConfigurationSingle inlet/Dual outlet
System Material409S Stainless Steel
Valve TypeNot Applicable
Tip Edge StyleRolled edge, double-wall
Tip ShapeRound
Exhaust Tip Diameter4 in.
Package Qty1
Package TypeEA
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