Flowmaster Original 40 Series Offset 2.5 in Oval Muffler (1979-93 All)

Flowmaster Original 40 Series Offset 2.5 in Oval Muffler (1979-93 All)

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$95.40 $85.86
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Looking for the most aggressive sound in the Flowmaster muffler line? Then take a look at these 40 series mufflers. Designed for use on street and strip vehicles, they take the sound waves produced in the exhaust, and cancel them against angled baffles built into the muffler case. This improves both horsepower and fuel economy. Best of all, they allow you to hear that cool Flowmaster tone inside of the vehicle, as well as outside. So, if you want more power and a throatier sound, then you've gotta get these Flowmaster mufflers.

Inlet PositionOffset
Inlet Diameter (IN)2-1/2 Inch
Outlet PositionOffset
Outlet Diameter (IN)2-1/2 Inch
Overall Length (IN)19 Inch
Color/ FinishGray Satin
Case Diameter (IN)9-3/4 Inch X 4 Inch
Case Length (IN)13 Inch|
MaterialAluminized Steel
Includes TipNo
Tip Length (IN)No Tip
Tip Diameter (IN)No Tip
Tip FinishNo Tip
Tip MaterialNo Tip
Wall TypeSingle Wall
Internal ConstructionTwo Chambered

- Signature Flowmaster Sound
- Original Two Chamber Technology
- Offset Inlet and Outlet Design
- 2.5" Inlet/Outlet Diameter
- Aluminized Steel Construction
- Sold Individually

1987, 1988, 1989, 1990, 1991, 1992, 1993 Mustang All (Except 1999-04 Cobra IRS)
1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986 Mustang All (Except 1999-04 Cobra IRS)

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Flowmaster, Inc. offers a limited lifetime warranty on workmanship and materials for stainless steel mufflers and kits. This includes rust corrosion. Flowmaster offers a 1-year warranty on headers for workmanship and materials. Flowmaster extends a 3-year warranty for all other products, including aluminized mufflers and kits. These warranties shall not apply to any product that was installed on any racing vehicle, installed improperly, altered, misused, or repaired or damaged from accident, collision, undercarriage road impact, or debris or willful or negligent act.

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