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Flowmaster 50 Series Big Block Steel 2.75 Inch Muffler 527504 Muffler, Series, Dual 2 3/4 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Black, Each

SKU: FLO527504

Mufflers

Flowmaster 50 Series Big Block Steel 2.75 Inch Muffler 527504 Muffler, Series, Dual 2 3/4 in. Inlet/Dual 2 1/2 in. Outlet, Steel, Black, Each

SKU: FLO527504

Mufflers
A$976.96
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Flowmaster 50 series Big Block mufflers have proven to not only significantly improve acceleration and towing power, but to simultaneously increase fuel economy as well. Because of their efficiency, underhood temperatures on trucks and motor homes can be reduced as much as 200 degrees F--helping to lengthen the service life of other engine components. These mufflers are designed and sized for larger gas and diesel engines typically used in towing vehicles and RVs. So, for more comfortable cruising, Flowmaster tuned them for reduced exterior exhaust sound and lower levels of interior resonance.

Part Type

50 Series Big Block Muffler

Data: v4.2 - Upd: 2026-10-17 03:11:05

Specifications

Product Attributes - Brand
Flowmaster
Product Attributes - Manufacturer's Part Number
527504
Product Attributes - Part Type
Mufflers
Product Attributes - Product Line
Flowmaster 50 Series Big Block Mufflers
Product Attributes - UPC
700042016532
Product Attributes - Muffler Material
Steel
Product Attributes - Inlet Diameter (in.)
2.75 in.
Product Attributes - Outlet Diameter (in.)
2.50 in.
Product Attributes - Inlet Quantity
2
Product Attributes - Outlet Quantity
2
Product Attributes - Inlet Location
Offset
Product Attributes - Outlet Location
Offset
Product Attributes - Case Shape
Oval
Product Attributes - Reversible
No
Product Attributes - Internal Construction
Chambered
Product Attributes - Muffler Finish
Black
Product Attributes - Case Exterior Length (in.)
22.00 in.
Product Attributes - Overall Length (in.)
28.00 in.
Product Attributes - Thickness (in.)
5.000
Product Attributes - Width (in.)
12.000 in.
Product Attributes - Outlet Style
Standard, without tip
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Flowmaster
StreetFX SKU flo527504
SFX Item ID 4983437
Supplier Item Code 4983437
Manufacturer SKU 527504
Manufacturer UPC 700042016532
Alternative References FLM527504

Compatibility

Application Data
  • UniversalYes
    MakeGMC
    ModelK3500
    SubmodelSIERRA SLE
    Beginning Year1996
    Ending Year1999
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelK3500
    SubmodelSIERRA SLE
    Beginning Year1996
    Ending Year1998
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelK3500
    SubmodelSIERRA SLE
    Beginning Year1996
    Ending Year1998
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelK3500
    SubmodelSIERRA SLE
    Beginning Year1998
    Ending Year1998
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR
  • MakeGMC
    ModelK3500
    SubmodelSIERRA SLT
    Beginning Year1998
    Ending Year1998
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR
  • MakeGMC
    ModelK3500
    SubmodelSIERRA SLT
    Beginning Year1998
    Ending Year1999
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelK3500
    SubmodelSIERRA SLT
    Beginning Year1998
    Ending Year1999
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelK3500
    SubmodelSIERRA SLT
    Beginning Year1999
    Ending Year1999
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR
  • MakeHUMMER
    ModelH2
    SubmodelSIERRA SLT
    Beginning Year2003
    Ending Year2006
    Engine TypeV8
    Liter6.0
    CID364
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Drivetrain4WD
    Engine VIN CodeU
    CC5967
  • MakeHUMMER
    ModelH2
    SubmodelSIERRA SL
    Beginning Year2003
    Ending Year2007
    Engine TypeV8
    Liter6.0
    CID364
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Drivetrain4WD
    Engine VIN CodeU
    CC5967
  • MakeGMC
    ModelK2500
    SubmodelSIERRA SL
    Beginning Year1996
    Ending Year1998
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelK2500
    SubmodelSIERRA SL
    Beginning Year1996
    Ending Year1998
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR
  • MakeGMC
    ModelC2500 SUBURBAN
    SubmodelSIERRA SL
    Beginning Year1996
    Ending Year1998
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR
  • MakeGMC
    ModelC2500 SUBURBAN
    SubmodelSIERRA SLE
    Beginning Year1996
    Ending Year1999
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelC2500 SUBURBAN
    SubmodelSIERRA SLE
    Beginning Year1996
    Ending Year1999
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelC2500 SUBURBAN
    SubmodelSIERRA SLE
    Beginning Year1999
    Ending Year1999
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR
  • MakeGMC
    ModelC2500 SUBURBAN
    SubmodelSIERRA SLE
    Beginning Year1999
    Ending Year1999
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR
  • MakeGMC
    ModelC2500 SUBURBAN
    SubmodelSIERRA SLT
    Beginning Year1999
    Ending Year1999
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelC2500 SUBURBAN
    SubmodelSIERRA SLT
    Beginning Year1999
    Ending Year1999
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelC2500 SUBURBAN
    SubmodelSIERRA SLT
    Beginning Year1996
    Ending Year1999
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR
  • MakeGMC
    ModelC2500 SUBURBAN
    SubmodelSIERRA SLT
    Beginning Year1996
    Ending Year1999
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR
  • MakeGMC
    ModelC2500 SUBURBAN
    SubmodelSIERRA SL
    Beginning Year1999
    Ending Year1998
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelK3500
    SubmodelSIERRA SL
    Beginning Year1999
    Ending Year1998
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Gen VI
    Engine Size7.4L/454
    Drivetrain4WD
    Engine VIN CodeJ
  • MakeGMC
    ModelK3500
    SubmodelSIERRA SL
    Beginning Year1999
    Ending Year1999
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR
  • MakeGMC
    ModelK3500
    SubmodelSIERRA SL
    Beginning Year1996
    Ending Year1998
    Engine TypeV8
    Liter5.7
    CID350
    Engine FamilyChevy small block Gen I
    Engine Size5.7L/350
    Drivetrain4WD
    Engine VIN CodeR

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