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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 Sep 08, 2026
Lowest Price Guarantee
Center 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
Part TypeMuffler
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
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Some parts are not legal for use in California or other states with similar laws / regulations
