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Flowmaster 13 Delta Flow 40 Series Muffler With 2-1/2 Offset Inlet / 2-1/2 Offset Outlet

F842543 - Flowmaster 13" Delta Flow 40 Series Muffler With 2-1/2" Offset Inlet / 2-1/2" Offset Outlet

This two chamber design incorporates Flowmasters patented "Delta Flow" technology.

The "Delta" deflectors result in increased scavenging for better performance and reduced interior resonance over the standard 40 series with a nice growl outside the vehicle. Sounds great on late model performance cars with catalytic converters.

Constructed of 16 gauge steel and fully mig-welded for maximum durability.


  • 4" thick
  • 9-3/4" wide
  • 13" case lenght
  • 19" overall length

Product #: F842543

In Stock Now!

MSRP: $123.99 ea
Classic: $111.99 ea



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