40 Series - 2.50 Dual In / 3.00 Center Out - Aggressive Sound
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.
  • Excellent Street/Strip and Off Road application
  • Noticeable interior resonance
  • Aggressive Sound Exterior Exhaust Tone
  • Durable fully welded 16 gauge aluminized steel

Information:

Universal Muffler - Some adaptation may be required.

Application Summary:

Year Make/Model
Universal Muffler-Not a direct fit. Some adaptation required
Attributes
Automotive Item Grade High Performance
Body Height 4.00
Body Height (in) 4
Body Length 13.000 in., 13.00
Body Length (in) 13
Body Material Aluminized Steel
Body Width 9.50
Body Width (in) 9.75
Brand Flowmaster, Flowmaster
Bullet Point #1 Durable fully welded 16 gauge aluminized steel
Bullet Point #2 Aggressive Sound Exterior Exhaust Tone
Bullet Point #3 Noticeable interior resonance
Bullet Point #4 Excellent Street/Strip and Off Road application
California Proposition 65 No
Category Exhaust, Exhaust
Clamps Included No
Color Black, Black
Country of Origin (Primary) CN
Emission Code 5, 5
Exhaust Tip Quantity Sold Separately
Finish Painted, High-Temperature Paint
Fitment Universal, Universal
GTIN 00700042038534
Grade Type Performance
Hanger Included No
Harmonized Tariff Code (Schedule B) 8708925000
Hazardous Material Code N
Heat Shield Attached No
Inlet Connection Type Clamp-On, Pipe Connection
Inlet Diameter 2.50
Inlet Diameter (in) 2.5
Inlet Inside Diameter 2.500 in., 2.50
Inlet Location Dual
Inlet Outside Diameter 2.500 in., 2.63
Inlet Position Dual
Inlet Quantity 2, 2
Inlet Type Weld-On, Clamp-On
Life Cycle Status Code Available to Order
Material Aluminized Steel
Muffler Body Height 4.000 in.
Muffler Body Height/Thickness (in) 4
Muffler Body Length 13.000 in.
Muffler Body Length (in) 13
Muffler Body Shape Oval
Muffler Body Width 9.750 in.
Muffler Body Width (in) 9.75
Muffler Inlet Diameter 2.500 in.
Muffler Outlet Diameter 3.000 in.
Muffler Outlet Diameter (in) 3
Muffler Overall Length 19.000 in.
Muffler Overall Length (in) 19
Muffler Series Original 40 Series, Original 40 Series
Muffler Type Reflection, Chambered
NAFTA Preference Criterion Code B
Outlet Connection Type Clamp-On, Pipe Connection
Outlet Diameter 3.00
Outlet Diameter (in) 3
Outlet Inside Diameter 3.00
Outlet Location Center
Outlet Outside Diameter 3.13
Outlet Position Center
Outlet Quantity 1, 1
Outlet Type Single Center, Single
Overall Length 19.000 in., 19.00
Overall Length (in) 19
Product Type Street Mufflers, Street Mufflers
Reversible No
SDR Required Flag N
SDS Sheet Number N
Sale Category Exhaust
Series 40 Series Original Mufflers
Shape Universal, Oval
Sound Level Aggressive, Aggressive Sound
Sub Category Mufflers
Subcategory Mufflers
Tunable No
Type of Muffler Chambered
Universal Or Specific Fit Universal
Vehicle Type Classic Muscle Car, Late Model Muscle Car
Warranty Time 36
part type Exhaust Muffler

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Flowmaster 425403 Flowmaster 40 Series Chambered Muffler

Product Information

Vehicle Fitment