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Exhaust Muffler

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 for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
MaterialAluminized Steel
Inlet TypeSingle Center
Main Piping DiameterOEM
Muffler SeriesOriginal 40 Series
Inlet Outside Diameter2.500 in.
Inlet Connection TypePipe
Outlet PositionOffset
Tip Quantity0
Outlet TypeSingle Offset
Inlet Diameter2.500 in.
Outlet Outside Diameter2.500 in.
Body Width9.500 in.
Sound LevelAggressive
TitleFlowmaster 42542 40 Series Muffler - 2.50" IN(C)/OUT(O) - Aggressive Sound
WARNING CA Proposition 65No
Outlet Diameter2.500 in.
ShapeOval
Overall Length19.000 in.
Body Height4.000 in.
Inlet Inside Diameter2.500 in.
Body Length13.000 in.
Inlet PositionCenter
Weight0.1
BrandFlowmaster
Part Number42542
Line CodeFLO
UPC700042010349
TerminologyExhaust Muffler
Weight0.1
For warranty information please contact Auto-Wares.