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40 Series (2 Chamber) Delta Flow

The 40 Series is the most aggressive sounding street and strip muffler in Flowmaster's product line.  If you are looking for the original "Flowmaster Tone" the 40 Series is the one.  The performance street and strip muffler will also generate interior resonance within the vehicle.  So if you want to really hear your exhaust system inside the vehicle as well as outside it, the 40 Series is for you.  Available in Delta Flow

1964-73 Mustang "2 Chamber Flowmaster" -

Part # Description Price Qty Purchase

Flowmaster 2 Chamber 40 Series Mufflers 2.00' Delta Flow


Flowmaster 2 Chamber 40 Series Mufflers 2.25" Delta Flow


Flowmaster 2 Chamber 40 Series Mufflers 2.50" Delta Flow


Flowmaster 2 Chamber 40 Series Mufflers 3.00" Delta Flow


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