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![FlowMonster Straight-Through Muffler [409 Stainless Steel]](https://www.jegs.com/images/mini_750/300/389/389-11386-fm.jpg)
Vehicle Info NeededFLOWMASTERPART NUMBER: 389-11386-FM
FlowMonster Straight-Through Muffler [409 Stainless Steel]
$7169
1 left in stock
Ships on Nov 02, 2026
Lowest Price GuaranteeDual In/Dual Out
FlowMonster Straight-Through MufflerUniversal Fit Dual 2.5 in. Inlet/Outlet Straight-Through Design 409 Stainless Steel Natural Finish Sold Individually
This universal flowmonster straight-through muffler has dual 2.5 in. inlet and outlet connections with dual inlets and dual outlets in a oval body.
Flowmaster 11386-FM Technical Specifications:
- Straight-Through construction in 409 stainless steel.
Flowmaster 11386-FM Compatibility Notes:
- Universal fit: not a direct fit, so some adaptation is required.
- Clamps and hangers are not included.
Aggressive Sounding Mufflers!
Flowmaster FlowMonster Mufflers deliver an aggressive exhaust sound that speaks "POWER"! These compact mufflers have superior heat-absorption and corrosion-resistant materials that deliver lasting dependability and appearance. Fully MIG-welded construction provides dominant durability and excellent exhaust flow to get the most performance out of your car, truck or SUV.
Part TypeMuffler
Product LineFlowmaster FlowMonster Mufflers
BrandFLOWMASTER
Package Height4.3
Package Width9.2
Package Length20.8
Weight11.75 PG
Part CategoryPerformance Parts
Hardware IncludedNo
Outlet Diameter2.5 in (63.5 mm)
QuantitySold Individually
Inlet LocationDual
Mounting Bracket IncludedNo
Case ShapeOval
Body Width9 in (228.6 mm)
Body Material409 Stainless Steel
Outlet LocationDual
Exit QuantityTwo
Inlet Diameter2.5 in (63.5 mm)
Clamps IncludedNo
Body Height4 in (101.6 mm)
Inlet Quantity2
Part FitmentUniversal
Muffler Body Length14 in (355.6 mm)
FinishNatural
Vendor Part Number11386-FM
Package Qty1
Package TypeEA
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