Catalytic Converter Cleaner

Catalytic Converter Cleaner doesn’t work for everyone or every car. Sometimes it works, sometimes it works long enough to pass the smog test and sometimes it doesn’t work at all. We take the risk out of your purchase.  Just return the empty bottle back to FMS Performance San Bernardino within 90 days of your purchase and we will put the full cost toward the purchase of a new FMS catalytic converter.

Cataclean - Fuel and Exhaust System Cleaner

Cataclean – Fuel & Exhaust System Cleaner


Cataclean Diesel - Fuel and Exhaust System Cleaner

Cataclean Diesel – Fuel & Exhaust System Cleaner


Motorcycle and Powersports

Motorcycle & Powersports



  • EPA Approved
  • Easy to use – simply pop, pour and go
  • Safe for gasoline, diesel and hybrid vehicles
  • Does not alter fuel composition and is safe for gasoline, diesel & hybrid engines
  • Restores, maintains & helps protect the catalytic converter, oxygen sensors, fuel injectors, cylinder heads and DPF
  • Lowers total hydrocarbon emissions up to 50%
  • Reduces harmful carbon build-up on oxygen sensors
  • Improves fuel efficiency
  • Restores engine performance
  • Legal in all 50 states
  • Patented formula

Reduces Emissions and Improves Overall Engine Performance!