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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-13012100
Pro Series Muffler In/Out: 3"
$23295
2 left in stock
Ships on Nov 02, 2026
Lowest Price GuaranteeShorty
- Pro Series Muffler
- In/Out: 3"
- Width: 6"
- Height: 6"
- Length: 12"
- Durable Fully Welded 18ga Aluminized Steel Case
- Limited Lifetime Warranty
- 409 Stainless Steel Internal Construction
- Race Proven Design
- High Horsepower Apps Include Diesels/RVs/Trucks
- Wide Spectrum Sound Cancellation Technology
- Patented Laminar Flow Technology
- www.Flowmastermufflers.com
Open Pipe Performance Without The Sound
Flowmaster's Pro Series Laminar Flow Mufflers work on all applications ranging from sprints and midgets, vintage racing, rock crawlers, and diesel sled pullers. The Pro Series Laminar mufflers consistently deliver performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range. A key feature is its Cool Shell technology which minimizes the outside case temperature for mounting in and around body panels.
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Features:- Moderate tone.
- Fully welded 18 gauge stainless steel case.
- 409 stainless steel internal construction.
- Race proven design.
- Reduces sound levels across the RPM range.
Part TypeMuffler
Product LineFlowmaster Pro Series Laminar Flow Mufflers
BrandFLOWMASTER
Package Height6.9
Package Width7.1
Package Length27.0
Weight9.65 PG
Outlet Quantity1
Inlet PositionCenter
Inlet TypeWeld-On
Inlet Size (In.)3
Heat Shield AttachedNo
Body Length12 in.
Muffler Count1
Inlet Outside Diameter3.13 in.
Body Diameter6 in.
Inlet Quantity1
Sound LevelModerate
Outlet Outside Diameter3.13 in.
Muffler MaterialSteel
Universal Or Specific FitUniversal
Hanger IncludedNo
Outlet Diameter3 in (76.2 mm)
ColorBlack
TunableNo
Case Length12 in (304.8 mm)
Case ShapeRound
Body Width6 in.
Outlet Inside Diameter3 in.
Body Height6 in.
Outlet TypeSingle
Case Outside Diameter6 in (152.4 mm)
Outlet PositionCenter
Part CategoryPerformance Parts
ShapeRound
Exhaust Tip Quantity0
Inlet LocationCenter
Muffler TypeLaminar Flow
Outlet StyleStraight tip
Muffler FinishAluminized/Black
Inlet Diameter3 in.
Clamps IncludedNo
FinishHigh-Temperature Paint
ReversibleNo
Outlet Size3 in (76.2 mm)
Muffler SeriesPro Series
QuantitySold individually
Overall Length18 in.
MaterialAluminized Steel
Internal ConstructionPerforated stainless tube with packing
Body Material409 Stainless Steel
Inlet Inside Diameter3 in.
Outlet LocationCenter
FitmentUniversal
Part FitmentSemi Universal
Vendor Part Number13012100
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
