Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
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Features, Description, Q&A, Specs & Installation
| Brand | Flowmaster |
| Muffler Inlet Size | 2.50 Inch |
| Muffler Installation Type | Clamp-On Muffler |
| Muffler Type | Chambered Muffler |
Original Sound Performance. The Flowmaster 40 Series Center/Offset Oval Muffler with 2.50-inch inlet and outlet delivers the signature aggressive tone classic to Flowmaster mufflers. Designed for street and strip applications, it enhances exhaust sound while providing reliable performance for muscle cars, street rods, trucks, and SUVs.
Durable Construction and Appearance. Built from 16 gauge aluminized steel, this muffler is fully MIG welded for strength and longevity. Its high-temperature painted finish offers a sleek black appearance resistant to heat and corrosion, ensuring durability under demanding conditions.
Installation Ease. The slip-fit inlet and outlet design enable straightforward installation with options for clamp-on or weld-on connections. No drilling is typically required, making it suitable for both experienced installers and do-it-yourself enthusiasts.
Application. This muffler features universal fitment requiring some adaptation, suitable for a variety of classic and late-model muscle cars, street rods, street/strip vehicles, and trucks/SUVs.
Flowmaster 42542
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation Info
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
No guide available for this part yet.
What's in the Box
Tech Guides: