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![FlowMonster 1-Chamber Muffler [Aluminized Steel]](https://www.jegs.com/images/mini_750/300/389/389-42510-fm.jpg)
Vehicle Info NeededFLOWMASTERPART NUMBER: 389-42510-FM
FlowMonster 1-Chamber Muffler [Aluminized Steel]
$4472
2 left in stock
Ships on Oct 12, 2026
Lowest Price GuaranteeCenter In/Center Out
FlowMonster 1-Chamber MufflerUniversal Fit 2.5 in. Inlet/Outlet Center In/Center Out Chambered Design Oval Body, 6.5 in. Long Aggressive Sound Aluminized Steel High-Heat Silver Coating Sold Individually
For builders who want the classic Flowmaster sound, the 42510-FM FlowMonster 1-Chamber is a chambered, aluminized steel muffler with 2.5 in. inlet and outlet connections and a center inlet and a center outlet.
Flowmaster 42510-FM Technical Specifications:
- Aluminized steel construction.
- Aggressive sound level.
- Oval body measuring 6.5 in. long, 9.5 in. wide and 4 in. high.
- High-heat silver coating.
Flowmaster 42510-FM Installation Notes:
- Universal fit: not a direct fit, so some adaptation is required.
- Clamps and hangers are not included.
Part TypeMuffler
BrandFLOWMASTER
Package Height4.5
Package Width10.3
Package Length13.3
Weight6.05 PG
Part CategoryPerformance Parts
Hanger IncludedNo
Outlet Diameter2.5 in (63.5 mm)
Muffler SeriesFlowMonster 1-Chamber
QuantitySold individually
Inlet LocationCenter
Muffler TypeReflection
Heat ShieldNo
Internal ConstructionChambered
Case ShapeOval
Body Width9.5 in (241.3 mm)
Body MaterialAluminized Steel
Exit QuantityOne
Body Length6.5 in (165.1 mm)
Inlet Diameter2.5 in (63.5 mm)
Clamps IncludedNo
Body Height4 in (101.6 mm)
Inlet QuantityOne
Part FitmentUniversal
Outlet PositionCenter
Sound LevelAggressive
FinishSilver
Vendor Part Number42510-FM
Package Qty1
Package TypeEA
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