our services
Gas or Diesel

 Our Specialty:

  • Catalytic Converters
  • Exhaust Services (repair / install)
  • stock / Performance Mufflers
  • Cat-Back Exhaust Systems
  • muffler deletes
  • Dual Exhaust
  • Diesel Exhaust


Learn more       

Hours of Operation

8:00 AM - 4:00 PM


8:00AM - 3:00PM

Closed Sundays & Holidays


​(626) 967-4511

1554 W. San Bernardino Rd.

Covina, CA 91722

Stop in for a FREE Exhaust inspection

Freedom is never free! The Muff Shop thanks  ALL the armed forces of America from the past and present!

About us

The Muff Shop (aka Bud's Muffler) has 
been building custom exhaust systems for over 70 years on both domestic and foreign vehicles, Recreational Vehicles, Motorhomes and many more! We not only work on exhaust systems, but we also provide excellent preventative maintenance Services. We are a company on the move, motivated by the values that have made us a success: trust, service, reliability, ALL at a resonable price that built The Muff Shop / Buds Muffler.