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Flowmaster

Flowmaster 40 Series Chambered Muffler

Part # 425404 Be the first to write a review

40 Series - 2.50" IN(D)/OUT(D) - Aggressive Sound

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Body Material

Inlet Inside Diameter

Outlet Inside Diameter

Inlet Location

Outlet Location

Flowmaster 40 Series Chambered Muffler

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$101.95
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The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.

Features:

  • No internal packing to blowout
  • Excellent Street/Strip and Off Road application
  • Aggressive Sound Exterior Exhaust Tone
  • Durable fully welded 16 gauge aluminized steel
Body Height4.00 IN
Body Length13.00 IN
Body MaterialAluminized Steel
Body Width9.50 IN
Brand Flowmaster
California Proposition 65No
CategoryExhaust
Clamps IncludedNo
ColorBlack
Emission Code5
Exhaust Tip Quantity0
Sold Separately
FinishHigh-Temperature Paint
FitmentUniversal
Grade TypePerformance
Hanger IncludedNo
Heat Shield AttachedNo
Inlet ConnectionSlip-Fit
Inlet Diameter2.50 IN
Inlet Inside Diameter2.50 IN
Inlet LocationDual
Inlet Outside Diameter2.63 IN
Inlet Quantity2
Inlet TypeClamp-On
Weld-On
Muffler SeriesOriginal 40 Series
Muffler TypeChambered
Outlet ConnectionSlip-Fit
Outlet Inside Diameter2.50 IN
Outlet LocationDual
Outlet Outside Diameter2.63 IN
Outlet Quantity2
Outlet TypeDual
Overall Length19.00 IN
part typeExhaust Muffler
Product TypeStreet Mufflers
ReversibleNo
ShapeOval
Sound LevelAggressive
Sub CategoryMufflers
TunableNo
Universal Or Specific FitUniversal
Vehicle TypeClassic Muscle Car
Late Model Muscle Car
Street Rod
Street/Strip
Truck/SUV
UPC700042026029
Part Number425404
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 - Flowmaster Warranty 26 Update.pdf
Instructions - street_applications.pdf
Universal Muffler - Some adaptation may be required.

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    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

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

    Flowmaster 40 Series Chambered Muffler
    Flowmaster 40 Series Chambered Muffler
    $101.95