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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-42542
40 Series Original Muffler Center In/Offset Out: 2.5"
$10195
More than 10 available
Ships on Nov 02, 2026
Lowest Price GuaranteeCenter In/Offset Out
40 Series Original MufflerCenter In/Offset Out: 2.5" Aluminized Steel
FLOWMASTER MUFFLERS 42542 Features:
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.- No internal packing to blowout
- Excellent Street/Strip and Off Road application
- Aggressive Sound Exterior Exhaust Tone
- Durable fully welded 16 gauge aluminized steel
The Muffler That Started It All!
Flowmaster's 40 Series Original Mufflers are designed for street/strip and off-road use. These aggressive sounding mufflers deliver a powerful, classic "Flowmaster Sound" from both inside and outside of the vehicle. Give your exhaust system a great muscle car tone with one of these fully MIG welded 40 Series original mufflers.
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Features:
- The original high-performance muffler
- Aggressive sound
- Constructed from stainless steel or 16-gauge aluminized steel
- Fully MIG welded
Part TypeMuffler
Product LineFlowmaster 40 Series Original Mufflers
BrandFLOWMASTER
Package Height4.4
Package Width10.0
Package Length19.9
Weight9.9 PG
Part CategoryPerformance Parts
ShapeOval
Exhaust Tip Quantity0
Outlet Quantity1
Inlet LocationCenter
Muffler TypeChambered
Inlet PositionCenter
Inlet TypeWeld-On
Inlet Size (In.)2.5
Heat Shield AttachedNo
Body Length13 in.
Muffler Count1
Inlet Outside Diameter2.63 in.
Inlet Diameter2.50 in.
Clamps IncludedNo
Inlet Quantity1
Sound LevelAggressive
FinishHigh-Temperature Paint
Outlet Outside Diameter2.63 in.
ReversibleNo
Universal Or Specific FitUniversal
Outlet Size2.5 in (63.5 mm)
Hanger IncludedNo
Inlet Connection TypePipe Connection
ColorBlack
Muffler SeriesOriginal 40 Series
TunableNo
Overall Length19.00
MaterialAluminized Steel
Body Width9.50 in.
Outlet Inside Diameter2.50 in.
Body MaterialAluminized Steel
Inlet Inside Diameter2.50 in.
Outlet LocationOffset
FitmentUniversal
Body Height4 in.
Outlet TypeSingle
Part FitmentUniversal
Outlet PositionOffset
Vendor Part Number42542
Package Qty1
Package TypeEA
No Questions
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