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10 Best exhaust emissions of 2025

Save up to 27% off
  • Best Choice

    1

    Rislone® 4744-4PK DPF Clean™ Diesel DPF, Exhaust & Emissions System Cleaner, 16.9 oz, 4-Pack
    Rislone

    Rislone® 4744-4PK DPF Clean™ Diesel DPF, Exhaust & Emissions System Cleaner, 16.9 oz, 4-Pack

    10% Off
    9.6
    Exceptional
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  • Value for Money

    2

    Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner, 16.9 oz, 3-Pack
    Rislone

    Rislone 4720 Cat Complete Fuel, Exhaust and Emissions System Cleaner, 16.9 oz, 3-Pack

    27% Off
    9.4
    Excellent

  • 3

    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

    • Application Method:Use every 5,000 miles
    • Performance Improvement:Increase power, performance, mileage
    • Compatibility:Gasoline, ethanol, hybrid vehicles
    • Cleaner Function:Cleans emissions and exhaust
    • Emission Reduction:Reduce CO and NOX emissions
    9.3
    Excellent
    Our Rating

  • 4

    Rislone® 4744 DPF CLEAN™ Diesel DPF, Exhaust & Emissions System Cleaner, 16.9 oz, 1-Pack
    Rislone

    Rislone® 4744 DPF CLEAN™ Diesel DPF, Exhaust & Emissions System Cleaner, 16.9 oz, 1-Pack

    • Application Method:Every 5,000 miles
    • Performance Improvement:Increases power, performance, mileage
    • Compatibility:ULSD, biodiesel, turbo engines
    • Cleaner Function:Cleans emissions & exhaust system
    • Emission Reduction:Lowers ignition temperature
    9.2
    Excellent

  • 5

    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
    9.1
    Excellent
    Our Rating
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  • 6

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz - Pack of 2 (120019)
    Cataclean

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 16oz - Pack of 2 (120019)

    8.9
    Very Good
    Our Rating

  • 7

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 8oz (120020CAT)
    Cataclean

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 8oz (120020CAT)

    8.6
    Very Good

  • 8

    ACDelco GM Original Equipment 10-4022 Diesel Exhaust Emissions Reduction (DEF) Fluid - 1 gal, white
    ACDelco

    ACDelco GM Original Equipment 10-4022 Diesel Exhaust Emissions Reduction (DEF) Fluid - 1 gal, white

    12% Off
    8.5
    Good

  • 9

    Rislone 4784 DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz
    Rislone

    Rislone 4784 DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner, 11.8 oz

    • Application Method:Installed in DEF tank
    • Performance Improvement:Keeps system clean
    • Compatibility:Works with all AdBlue
    • Cleaner Function:Prevents crystallization issues
    • Emission Reduction:For SCR systems
    8.4
    Good

  • 10

    Blue Def DEF002-2PK Diesel Exhaust Fluid, 2.5 Gallon, 2 Pack
    Blue Def

    Blue Def DEF002-2PK Diesel Exhaust Fluid, 2.5 Gallon, 2 Pack

    • Fuel Economy:6000 miles between fill-ups
    • Performance Enhancements:Reduces NOx emissions
    • Lubricity:N/A
    • Injector Cleaning:N/A
    • Water Removal:N/A
    8.2
    Good
    Our Rating