Dale Amy
January 15, 2010

Horse Sense:
DynoMax uses a patented process called Forstadt Inside/Outside Bend to manufacture the internal perforated tube on Ultra Flo mufflers. This process prevents tube distortion and results in maximum exhaust flow and performance. In addition, the FIOB process increases the tube area for improved sound absorption. Ultra Flo cans are characterized by deep tones and reasonable decibel levels

DynoMax is a familiar name in Mustang exhaust systems, so it should come as no surprise to see the company weld up versions for the '05 Mustang GT. Two versions, to be precise: the cost-effective aluminized mufflers we're installing here, as well as a polished T304 stainless offering for those seeking the ultimate in longevity and flash, and willing to pay for it. Both are based on DynoMax's well known fully-welded Ultra Flo architecture, which has a patented continuous straight-through perforated flow-path tube surrounded by continuous roving fiberglass. Ultra Flo cans are characterized by deep tones and reasonable decibel levels.

We were doing some other tech at Paul's High Performance when the DynoMax crew swung by with this prototype set of aluminized '05 Ultra Flo mufflers and an otherwise stock, new automatic GT (actually one of its staff company cars) to try them on. Installation's a snap, and our dyno sidebar tells the power story.

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