1984-90 Corvette C4 - Direct-fit Mufflers - 425501-L & 425501-RYouTube Button

50 Series Direct Fit Muffler - Left side - Moderate Sound

50 Series

PART# 425501-L

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Fits 1984 to 1990 Chevrolet Corvette.


The three chamber design utilizes Flowmaster's patented Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.


  • Dual in tips
  • Bolt on muffler kit left side
  • Mild interior resonance
  • Moderate exterior sound level


Body Height (in)4
Body Length (in)15
Body Width (in)9.75
California Proposition 65 RequiredNo
Inlet Diameter (in)2.5
Inlet PositionOffset
MaterialAluminized Steel
Muffler Series40 Series
Outlet Diameter (in)2.5
Outlet PositionOffset
Product TypeStreet Mufflers
Sound LevelAggressive Sound
Part Number425501-L

Tech Resources

Fits 1984 to 1990 Chevrolet Corvette.



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