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10 Best exhaust cleaners of 2025

Save up to 31% off
  • Best Choice

    1

    Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (2 Pack)
    Red Line

    Red Line 60103 SI-1 Complete Fuel System Cleaner - 15 Ounce (2 Pack)

    9.7
    Exceptional
    Our Rating
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  • Value for Money

    2

    2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner
    MotorPower Care

    2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner

    • Application Method:No disassembly, easy use
    • Performance Improvement:Fix P0420 & P0430
    • Cleaner Function:Clean catalytic converter
    • Fuel Economy:N/A
    • Compatibility:N/A
    9.6
    Exceptional

  • 3

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)
    Cataclean

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz (120007)

    13% Off
    9.5
    Excellent
    Our Rating

  • 4

    Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner,16.9 oz. | Cleans Catalytic Converter, Reduces Emissions & Saves Gas
    Rislone

    Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner,16.9 oz. | Cleans Catalytic Converter, Reduces Emissions & Saves Gas

    14% Off
    • Application Method:Use every 5,000 miles
    • Performance Improvement:Increase power, performance, mileage
    • Cleaner Function:Cleans emissions and exhaust
    • Fuel Economy:Saves gas
    • Compatibility:Gasoline, ethanol, hybrid vehicles
    9.4
    Excellent
    Our Rating

  • 5

    Dura Lube Severe Catalytic and Exhaust Treatment | 16 oz., Single
    DURA LUBE

    Dura Lube Severe Catalytic and Exhaust Treatment | 16 oz., Single

    9.3
    Excellent
    Our Rating
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  • 6

    Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.
    Liqui Moly

    Liqui Moly Catalytic System Clean 300 ml 7110. Cleans The Injection System and The Combustion Chamber.

    10% Off
    9.1
    Excellent

  • 7

    Car Exhaust Pipe Cleaner Spray, 4 FL OZ, Safe Rust Remover and Metal Polish, Long-Lasting
    Generic

    Car Exhaust Pipe Cleaner Spray, 4 FL OZ, Safe Rust Remover and Metal Polish, Long-Lasting

    9.0
    Excellent

  • 8

    Rislone 4700 Hy-per Fuel Complete Fuel System Cleaner, 16.9 oz.
    Rislone

    Rislone 4700 Hy-per Fuel Complete Fuel System Cleaner, 16.9 oz.

    8.9
    Very Good
    Our Rating

  • 9

    BIXMK 2pcs Catalytic Converter Cleaner Auto Parts Engine, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil Additive for Gas and Diesel Car
    BIXMK

    BIXMK 2pcs Catalytic Converter Cleaner Auto Parts Engine, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil Additive for Gas and Diesel Car

    • Application Method:Pour in fuel tank
    • Performance Improvement:Improves vehicle performance
    • Cleaner Function:Reduces carbon build-up
    • Fuel Economy:Improved fuel efficiency
    • Compatibility:Gasoline and hybrid vehicles
    8.8
    Very Good

  • 10

    3 PCS Catalytic Converter Cleaner Auto Parts Engine, 120 ml Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil for Gas and Diesel Car
    Generic

    3 PCS Catalytic Converter Cleaner Auto Parts Engine, 120 ml Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil for Gas and Diesel Car

    31% Off
    8.7
    Very Good