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Flowmaster

Flowmaster 70 Series Chambered Muffler

70 Series - 2.25 Dual In / 3.00 Center Out - Mild Sound

Part # 524703 Be the first to write a review

Flowmaster 70 Series Chambered Muffler

Estimated Ship Date: 07/18/2025
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MSRP $249.95
$199.75
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5

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.

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The 70 series utilizes Flowmaster's Delta Flow® technology and an enlarged case for improved sound control along with mileage and power gains. Perfect for use on trucks, SUV's, RVs, tow vehicles and high performance street cars where space allows. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.

Features:

  • Minimal interior resonance
  • Improved Horsepower, Torque and Engine Efficiency
  • Recommended for SUV/trucks/motorhomes/tow vehicles
  • Mild to stock exterior exhaust tone
Automotive Item GradeHigh Performance
Body Height5.00 IN
Body Length22.00 IN
Body MaterialAluminized Steel
Body Width10.00 IN
Brand Flowmaster
CategoryExhaust
Clamps IncludedNo
ColorBlack
Emission Code5
Exhaust Tip Quantity0
FinishPaint
FitmentUniversal
Grade TypePerformance
Hanger IncludedNo
Heat Shield AttachedNo
Inlet Connection TypePipe Connection
Inlet Diameter2.25 IN
Inlet Inside Diameter2.25 IN
Inlet LocationDual
Inlet Outside Diameter2.38 IN
Inlet PositionDual
Inlet Quantity2
Inlet TypeClamp-On
Weld-On
MaterialAluminized Steel
Mount TypeUses New Hangers (Not Included)
Muffler Series70 Series Big Block
Muffler TypeChambered
Outlet Diameter3.00 IN
Outlet Inside Diameter3.00 IN
Outlet LocationCenter
Outlet Outside Diameter3.13 IN
Outlet PositionCenter
Outlet Quantity1
Outlet TypeSingle
Overall Length28.00 IN
part typeExhaust Muffler
Product TypeStreet Mufflers
ReversibleNo
ShapeOval
Sound LevelMild Sound
Sub CategoryMufflers
TunableNo
Type of MufflerChambered
Universal Or Specific FitUniversal
Vehicle TypeClassic Muscle Car
Street/Strip
Truck/SUV
UPC700042014668
California Proposition 65 RequiredNo
Part Number524703
5

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.
Instructions - fm_warranty_general.pdf
Instructions - street_applications.pdf
Universal Muffler - Not a direct fit. Some adaptation required. Adapters needed for OEM Exhaust.

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    Some parts are not legal for use in California or other states with similar regulations.