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Flowmaster

Flowmaster Super 40 Series Chambered Muffler

Part # 8525454 Be the first to write a review

Super 40 Stainless Steel - 2.50 Dual In / 2.50 Dual Out - Aggressive Sound

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Body Material

Inlet Inside Diameter

Outlet Inside Diameter

Inlet Location

Outlet Location

Flowmaster Super 40 Series Chambered Muffler

Estimated Ship Date: 09/04/2026
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$170.95
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The Super 40® features Flowmaster's Delta Flow® technology. It's larger case profile provides the best of both worlds of performance and sound. The Super 40 has that deep powerful sound of the Original 40 series, but with a deeper tone, and all the benefits of extra performance and low interior resonance from the Delta Flow® technology. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.

Features:

  • Excellent performance on high horsepower vehicles
  • Noticeable interior resonance
  • Deep Aggressive Sound Exhaust Note
  • Durable fully welded 409SS stainless steel
Body Height5.00 IN
Body Length13.50 IN
Body Material409 Stainless Steel
Body Width10.00 IN
Brand Flowmaster
California Proposition 65Yes
CategoryExhaust
Clamps IncludedNo
ColorBlack
Emission Code5
Exhaust Tip Quantity0
Sold Separately
FinishNatural
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
Mount TypeUses New Hangers (Not Included)
Muffler SeriesSuper 40 Series
Muffler TypeChambered
Outlet ConnectionSlip-Fit
Outlet Inside Diameter2.50 IN
Outlet LocationDual
Outlet Outside Diameter2.63 IN
Outlet Quantity2
Outlet TypeDual
Overall Length19.50 IN
part typeExhaust Muffler
Product TypeStreet Mufflers
ReversibleNo
ShapeOval
Sound LevelAggressive
Sub CategoryMufflers
TunableNo
Universal Or Specific FitUniversal
Vehicle Type4/6 CYL Engine
Classic Muscle Car
Late Model Muscle Car
Street Rod
Street/Strip
Truck/SUV
UPC700042025299
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
Part Number8525454
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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    Some parts are not legal for use in California or other states with similar regulations.