Best Catalytic Converter Cleaners In July 2025

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Are you an enthusiast of Best Catalytic Converter Cleaners? If so, you definitely want to check out the following top 10 Best Catalytic Converter Cleaners.

To help you in your search, we have completed this list of the Best Catalytic Converter Cleaners.

Top Rated Best Catalytic Converter Cleaners Of 2025

Rank	Product Name	Score
1	OXICAT - Oxygen Sensor & Catalytic Converter Cleaner Buy Now	9.7 Buy Now
2	Catalytic Converter Cleaning Kit Intensive Cleaning Made in Germany Buy Now	9.5 Buy Now
3	Solder-It (CAT-1) Catalytic Converter Cleaner - 16 oz Buy Now	9.1 Buy Now
4	Chevron Techron Concentrate Plus Fuel System Cleaner - 20 oz Buy Now	8.8 Buy Now
5	Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner - 15 fl. oz Buy Now	8.6 Buy Now
6	Cataclean 120019 Cataclean - The Original Liquid Science - Complete Engine, Fuel Buy Now	8.3 Buy Now
7	Cataclean 120018CAT Cataclean Fuel And Exhaust System Cleaner Special Formula For Use w/Gasoline Buy Now	8.1 Buy Now
8	AUTOSAVER88 ATCC0016 2" Inlet/Outlet Universal Catalytic Converter with O2 Port and Heat Shield Buy Now	7.8 Buy Now
9	Wynn's Catalytic Converter & Oxygen Sensor Cleaner Buy Now	7.5 Buy Now
10	MotorPower Care Catalytic Converter Cleaner Oxygen Sensor Latest Technology Buy Now	7.2 Buy Now

1. OXICAT - Oxygen Sensor & Catalytic Converter Cleaner

• Proven safe and effective by the pros, now available in north america. tuv certified, made in germany
• Engineered to clean the entire exhaust system with regular use.
• Safe and effective for all petrol (gasoline)and diesel vehicles
• Oxicat is activated when the catalytic converter reaches its required working temperature.

2. Catalytic Converter Cleaning Kit Intensive Cleaning Made in Germany

• Catalytic converter cleaner kit intensive catalyst cleaning made in germany

3. Solder-It (CAT-1) Catalytic Converter Cleaner - 16 oz

• May help in passing emissions control test!
• Extends time between tune-ups
• Helps clean oxygen sensor
• Helps eliminate "rotten egg" odor

4. Chevron Techron Concentrate Plus Fuel System Cleaner - 20 oz

• For best performance, follow the manufacturer's recommendations in your vehicle owners manual.

5. Hi-Gear HG3270s EZ Emissions Pass and Catalytic Converter Cleaner - 15 fl. oz

• Cleans fuel system, injectors, combustion chamber, pistons and valves
• Restores lost horsepower and increases fuel efficiency
• Reduces toxic gases and co2 emissions
• Prevents rotten egg smell
• Removes carbon deposits

6. Cataclean 120019 Cataclean - The Original Liquid Science - Complete Engine, Fuel

• Restores catalytic converter, oxygen sensors, fuel injectors and cylinder heads
• Does not alter fuel composition and is safe for gasoline, diesel and hybrid engines
• Original long nose bottle which is capless gas tank compatible
• Easy to use -simply pop, pour and go every 3 months
• Epa approved

7. Cataclean 120018CAT Cataclean Fuel And Exhaust System Cleaner Special Formula For Use w/Gasoline

• 3l packaging treats up to 30 gallons of fuel
• Safe for gasoline, e10, e15, and e85 fuels
• Restores, maintains & helps protect the catalytic converter, oxygen sensors, fuel injectors, and cylinder heads

8. AUTOSAVER88 ATCC0016 2" Inlet/Outlet Universal Catalytic Converter with O2 Port and Heat Shield

• Autosaver88 brand new universal fit catalytic converter is designed to meet or even exceed oe quality and performance standards without sacrificing flow rate.
• Genuine epa certification, every catalytic converter body is stamped with exclusive epa number. federal epa standard catalytic converters are backed 5 years or 50,000 miles limited warranty.
• Features heavy-duty stainless steel construction, internal ceramic substrates and catalyst coating have been carefully engineered for maximum efficiency.
• Standard 2" inside diameter inlet/outlet, 13" overall length, universal for vehicles with 2 inches outer diameter exhaust pipe.
• Non carb compliant ( illegal for use in california ), obd ii compliant ( for 1996 and newer vehicles ), installing may require cutting and welding, please consider professional operation.

9. Wynn's Catalytic Converter & Oxygen Sensor Cleaner

• Prolongs the lifetime of the catalytic converter and oxygen sensors.
• Prevents obd warning lamp illuminations. improves fuel efficiency by restoring the air-fuel ratio. restores engine performance. especially suited for city driving cycles.
• Removes deposits (oil and unburned fuel particles) and reduces emissions.ensures optimal working of the cat and the o2 sensors.
• Catalytic converter and oxygen sensor cleanerwynns catalytic converter & oxygen sensor cleaner for petrol and petrol hybrid engines.
• Optimizes the efficiency of the catalytic converter and ensures the optimal working of the lambda (oxygen) sensors.

10. MotorPower Care Catalytic Converter Cleaner Oxygen Sensor Latest Technology

• Catalytic converter cleaner oxygen sensor, high quality motorpower care