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Emissions Aftermarket Treatments

Emission Aftermarket Treatment

GCS designs systems that help bring your

engines into regulatory compliance.


Representing leading manufacturers of emission control and monitoring products, GCS helps you navigate the emissions regulations maze. We guide you through determining the equipment to meet your engine operating conditions: backpressure, catalyst sizing, configuration, placement and maintenance, supportive structure, and requirements for continuous monitoring.


  • Quick-Lid Catalysts and Silencers

    Quick-Lid Catalysts and Silencers

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  • Mine-X Catalysts

    Mine-X Catalysts & 3-Way Catalysts

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  • Diesel Particulate Filters

    Diesel Particulate Filters

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  • Selective Catalyst Reduction (SCR)

    Selective Catalyst Reduction (SCR)

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  • Siloxane Removal Technology (SRT)

    Siloxane Removal Technology (SRT)

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  • Selective Catalyst Reduction (SCR)

    Heat Exchangers

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  • Siloxane Removal Technology (SRT)

    GCS Catalyst Monitoring System (CPMS)

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  • Mine-X Catalysts

    Spare Elements and Catalyst

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