Skip to main content
ASK OUR EXPERTS
1-866-464-6553

FLOWMONSTER 409SS OVAL CASE ABSORPTION MUFFLER

FLOWMONSTER MUFFLER - 2.50 DUAL IN/2.50 DUAL OUT - 4.00 x 9.00 OVAL CASE - STRAIGHT THROUGH PERFORMANCE - MODERATE SOUND - 409 STAINLESS STEEL

Part # 11386-FM Be the first to write a review

FLOWMONSTER 409SS OVAL CASE ABSORPTION MUFFLER

Estimated Ship Date: 05/03/2024
Find Similar In-Stock Items
Free Shipping on orders over $150*
$62.47
Add to Wishlist
Notify Me When Available
5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

See Emissions Details
The Flowmonster series of absorption style mufflers deliver a moderate tone for the enthusiast looking for a deeper, more aggressive exhaust note than most OE (Original Equipment) mufflers, unlike the racey exhaust note associated with "chambered" style mufflers. Interior construction features 3.50 inch "straight-through" perforated 409 stainless steel tube surrounded by high-temperature sound absorption packing material which helps to deliver a deeper, mellower exhaust note. The internal design is reversible allowing the flexibility to be installed in either direction to best accommodate fitment with the intended vehicle. The fully MIG-welded 409 Stainless Steel material is embossed with the "FLOWMONSTER" logo on the case.

Features:

  • 409 Stainless Steel construction for superior corrosion resistance and good looks
  • Interior construction features high-temp interior sound absorption material delivering a deeper, mellow exhaust tone
  • Perforated High-Flow straight-through tube design for increased exhaust flow
  • Moderate increase in interior tone over most OE mufflers
  • A stainless steel performance muffler at an economical price
  • Internal Design is reversible allowing flexability to be installed in either direction
  • Sold Individually

About Flowmonster

Shop Flowmonster's official site for mufflers to add an aggressive exhaust note to your car, truck, or SUV. Available on Holley.com!

Automotive Item GradeHigh Performance
Body Height (in)4
Body Length (in)14
Body Width (in)9
Brand Flowmonster
ColorStainless Steel
Emission Code5
FinishNatural
FitmentUniversal
Inlet Connection TypePipe Connection
Inlet Diameter (in)2.5
Inlet PositionDual
Inlet Qty2
Material409 Stainless Steel
Muffler Body ShapeOval
Muffler SeriesFlowmonster
Muffler TypeAbsorption / Glasspack
Outlet Connection TypePipe Connection
Outlet Diameter (in)2.5
Outlet PositionDual
Outlet Qty2
Overall Length (in)20
Product TypeStreet Mufflers
ReversibleYes
ShapeOval
Sound LevelModerate Sound
Type of MufflerAbsorption
Vehicle Type4/6 CYL Engine
Classic Muscle Car
Late Model Muscle Car
Street Rod
Street/Strip
Truck/SUV
UPC090127075326
California Proposition 65 RequiredYes
Part Number11386-FM
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
This is a Universal Fit muffler - Not a Direct fit. Some adaption may be required for proper fitment on some applications
Reviews

    Your Review

    *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.