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Flowmaster

Flowmaster Super 10 Series Chambered Muffler

Part # 8425810 Be the first to write a review

Super 10 Series Stainless Steel - 2.50 Offset In / Dual Out Crossflow- Aggressive Sound

Flowmaster Super 10 Series Chambered Muffler

Estimated Ship Date: 06/15/2026
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Free Shipping - Lower 48 US States
Advertised Price $170.95
$153.85
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Delta Flow
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.

See Emissions Details

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Flowmaster's latest version of its popular Super 10 Series muffler is now offered in a crossflow design. This 409S Stainless Steel muffler is designed to be mounted transversely and has a 2.50 inch inlet and dual 2.50 inch outlets. Like all Super 10 Series mufflers, this single chamber design delivers a powerful and aggressive tone inside and outside of the vehicle. This muffler is backed by Flowmaster's Lifetime Limited Warranty.

Features:

  • Flowmaster Chambered Technology
  • Flowmaster Reliability
  • Most Aggressive Tone Available
  • Stainless Steel Construction
  • Crossflow desgin for transverse mounting applications

About Flowmaster

Shop the complete line of Flowmaster products for exhaust systems, mufflers, and more that deliver the iconic Flowmaster sound. Available at Holley.com!

Body Height4.00 IN
Body Length8.00 IN
Body Material409 Stainless Steel
Body Width9.75 IN
Brand Flowmaster
California Proposition 65Yes
CategoryExhaust
Clamps IncludedNo
ColorBlack
Emission Code5
Exhaust Tip Quantity0
FinishHigh-Temperature Paint
FitmentUniversal
Grade TypePerformance
Hanger IncludedNo
Heat Shield AttachedNo
Inlet ConnectionSlip-Fit
Inlet Diameter2.50 IN
Inlet Inside Diameter2.50 IN
Inlet LocationOffset
Inlet Outside Diameter2.63 IN
Inlet Quantity1
Inlet TypeClamp-On
Weld-On
Mount TypeUses New Hangers (Not Included)
Muffler SeriesSuper 10 Series
Muffler TypeChambered (Transverse)
Outlet ConnectionSlip-Fit
Outlet Inside Diameter2.50 IN
Outlet LocationDual
Outlet Outside Diameter2.63 IN
Outlet Quantity2
Outlet TypeDual
Overall Length12.50 IN
Part TypeExhaust Muffler
Product TypeSuper 10 Muffler
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
UPC700042035113
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
Part Number8425810
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.