Best Catalytic Converters 2026

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Last Updated - 03.02.2026

Best Choice

01

ICON Group International, Inc.

The 2026-2031 World Outlook for Catalytic Converters
9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

1.050,00 €
02

ICON Group International, Inc.

The 2026-2031 World Outlook for Automotive Catalytic Converters
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

1.050,00 €
Value for Money

03

Generisch

Catalytic Converter Cleaner Petrol, Petrol Catalytic Converter Cleaner, Practical, Boost Up Cleaner, Engine Turbocharger, Catalytic Converter Cleaner Engine Booster

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Protection against expensive repairs: The catalytic converter cleaner petrol protects the catalytic converter and other important vehicle components such as oxygen sensors and injectors from deposits that can lead to expensive repairs. By cleaning these parts, you reduce maintenance and ensure smooth operation.
Optimal cleaning for all vehicle types: the catalytic converter cleaner petrol is suitable for all vehicle types, including petrol, diesel, hybrid and flex fuel vehicles. This cleaner ensures thorough and effective cleaning of the entire exhaust system, reducing emissions and improving the overall performance of the vehicle.
IMPROVED PERFORMANCE AND FUEL EFFICIENCY The catalyst cleaner gasoline removes deposits and impurities from the catalyst and exhaust system, resulting in higher fuel efficiency and lowers fuel consumption. At the same time, the engine performance is improved, which allows you to optimise driving performance.
Easy to use, instant results: the petrol catalytic converter cleaner offers a quick and effective solution for cleaning the catalytic converter without having to disassemble it. Simply add the catalytic converter cleaner petrol to the fuel tank and immediately experience improved engine performance and a reduction in exhaust emissions.
EXTENDS ENGINE LIFE - The car catalytic converter cleaner helps loosen deposits throughout the exhaust system, protecting the turbocharger and other important engine components from contamination. The catalytic converter cleaner petrol extends the life of your engine while improving its efficiency.

7,59 €
04

Soumiey

Glamatic Catalytic Cleaner, Glamatic Boost Up Catalytic System Cleaner, Fuel & Exhaust System Cleaner, Catalytic Converter Cleaning Solution, Engine Carbon Cleaner for Performance Optimization (3

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Great catalytic converter cleaner: reduces carbon build-up in catalytic converters, oxygen sensors, fuel injectors and cylinder heads which results in improved fuel efficiency. Improves overall vehicle performance-including driveability issues such as power reduction, hesitation, rough idle, hard starts and lost fuel economy.
Fuel system cleaner: catalytic converter cleaner, catalytic cleaner, best catalytic converter cleaner, catalytic convertor cleaner, boost up catalytic convertor cleaner, catalytic system cleaner, catalyst converter cleaner, catalytic convertor cleaner.
Easy to use additives: simply pour in your fuel tank. Use one bottle per tank for most effective treatment that can be directly added to the fuel tank during refueling. Compatible with all gasoline and hybrid vehicles.
Catalytic converter cleaner: reduces carbon build-up in catalytic converter, oxygen sensors, fuel injectors and cylinder heads which results in improved fuel efficiency. Improves overall vehicle performance-including driveability issues such as power reduction, hesitation, rough idle, hard starts and lost fuel economy.
Catalytic Converter Cleaner: High Mileage Fuel Injector Cleaner is specially formulated to remove carbon deposits from engines with more than 75,000 miles. Safe for gasoline, diesel, hybrid and flex-fuel vehicles; does not alter fuel.

11,68 €
05

GZWY

Catalyst Cleaner Petrol, Catalytic Converter Cleaner, Car Catalytic Converter Cleaner for Engine Catalytic Converter Booster, for Petrol, Diesel, Hybrid Catalytic Converter Cleaner Engine Booster

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Scope of application: catalyst cleaner. Safe for petrol, diesel, hybrid and flex fuel vehicles, without fuel change, not for 2-stroke or oil/gas mixed engines.
Reduce Fuel Consumption & Bad Smell While reducing fuel consumption, it also eliminates the unpleasant odor that accumulates in your car over time. The right fuel and the right exhaust fumes ensure that the engine runs cleaner, quieter and better, which also reduces maintenance costs.
Protect the engine: the cleaner comes into contact with the carbon deposits and impurities when flowing through the converter and effectively dissolves them. The active components chemically decompose these deposits so they can be removed and dissolved from the inner surfaces of the converter.
ENERGY SAVING & EMISSION REDUCTION Catalytic converter cleaner reduces total hydrocarbon emissions by up to 50%, reduces carbon deposits in catalytic converters, oxygen sensors, injectors and cylinder heads, improves fuel efficiency and eliminates the unpleasant odor your car has developed over time while reducing fuel consumption.
Catalytic Converter Cleaner: Clean your converter thoroughly with the catalyst cleaner without disassembling it! Stop the dreaded engine maintenance light flashing on your display and achieve better engine performance. Makes life easier.

12,99 €
06

Generisch

Catalytic Converter Cleaner Petrol, Suitable for Petrol, Diesel System Cleaner Hybrid Catalytic Converter Cleaner, Three-Way Catalytic Converter Cleaner for Motorcycle and Car, 120 ml (Pack of 4)

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide application: petrol catalytic converter cleaner is suitable for all vehicle types, including petrol, diesel, hybrid and flex fuel vehicles.
Reduce fuel consumption: Reduces carbon deposits in catalytic converters, oxygen sensors, injectors and cylinder heads, improves fuel efficiency and eliminates unpleasant odours that cars produce over time while reducing fuel consumption.
Improve performance: helps clean the fuel injection system and cylinders, Catalyst Cleaner for Gasoline removes deposits and impurities from the catalytic converter and exhaust system, resulting in improved fuel efficiency, lower fuel consumption and better overall performance.
Extend engine life: Car catalytic converter cleaner helps dissolve deposits throughout the exhaust system, protecting the turbocharger and other important engine components from dirt.
Deep cleaning: Clean your catalytic converter thoroughly with Catalytic Converter Cleaner without removing the catalytic converter. Simply add Catalytic Converter Cleaner petrol to your fuel tank for an immediate improvement in engine performance and a reduction in exhaust emissions.

13,99 €
07

Henjunu

Catalytic Converter Cleaner, Engine Turbocharger Cleaner, Instant Practical Car Exhaust Cleaner, Catalytic Converter Cleaner Suitable for Petrol, Diesel, Hybrid Catalytic Converter Cleaner (Pack of 1)

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Wide range of applications: whether you own a saloon, SUV, truck or crossover, our practical instant car exhaust cleaner is perfect for all vehicle types. Experience the benefits of improved engine performance and efficiency on different fuel types
Protect the motor: the cleaner comes into contact with the carbon deposits and impurities when flowing through the converter and dissolves them effectively. The active components chemically decompose these deposits so they can be removed and dissolved from the inner surfaces of the converter
Large capacity design: our package contains 1 piece 120 ml capacity exhaust catalyte cleaner, which can meet your long-term use requirements and ensure that your vehicle's exhaust system remains clean and efficient at all times
Catalyst cleaner: clean your converter thoroughly with the catalyst cleaner without disassembling it. Stop the dreaded engine maintenance light flashing on your display and achieve better engine performance. Makes life easier
Application: catalyst cleaner. Safe for petrol, diesel, hybrid and flex fuel vehicles, without fuel change, not for two stroke or oil/gas mixed engines

8,99 €
08

Olivia Green

Scrap Catalytic Converter Guide: Code 5K: Code 5K
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
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140,76 €
09

ICON Group International, Inc.

The 2026-2031 World Outlook for Automotive Two-Way Oxidation Catalytic Converters
8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

1.050,00 €
10

C.A. Green

Scrap Catalytic Converter Guide: CODE 3 THOUSAND
8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
Main highlights

288,40 €