To see price and inventory
choose a local location

A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.
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.
  • Muffler Series: 40 Series
  • Inlet Position: Offset
  • Finish: Gray
  • Material: Aluminized Steel
  • Shape: Flowmaster Case
  • Outlet Position: Offset
  • Sound Level: Aggressive Sound
  • Body Width (inches): 9.75
  • Body Height (inches): 4.00
  • Body Length (inches): 13.00
  • Inlet Diameter (inches): 2.50
  • Outlet Diameter (inches): 2.50
Inlet/Outlet2.50" O/O
BrandFlowmaster
Part Number42543
Line CodeFLO
TerminologyExhaust Muffler
For warranty information please contact Auto-Wares.