Quiet your exhaust and route spent gases with the Walker Exhaust SoundFX Direct-Fit Muffler 18887, a bolt-on replacement for the 1999-2004 Ford F-250 Super Duty and 1999-2004 Ford F-350 Super Duty (see the Buyer's Guide tab for engine coverage). It features a 3" inlet (ID) and 3" outlet (ID), both in an offset configuration, so it drops into the factory exhaust path without specialized fabrication or welding.
If your original muffler has rusted through, blown out, or gone loud, this SoundFX unit replaces it with quality appearance and favorable acoustics.
This part cross-references / interchanges with the following part numbers:
What are the inlet and outlet sizes?
This muffler has a 3" inlet (ID) and a 3" outlet (ID), both in an offset configuration.
What vehicles does the Walker 18887 fit?
It is a direct-fit replacement for the 1999-2004 Ford F-250 Super Duty and 1999-2004 Ford F-350 Super Duty. Check the Buyer's Guide tab to confirm your engine.
What is the muffler made of?
It is built with 100% aluminized steel and includes an internal drainage system that helps reduce corrosion for longer service life versus low-carbon steel.
Will it require welding to install?
No. It is a direct-fit, bolt-on replacement with factory-style hangers, brackets and pipe routings, so no specialized fabrication or welding is needed.
How does it affect exhaust sound?
Its louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes, delivering favorable acoustics.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
