GESi® uses a proprietary advanced emission reduction system called Dry Selective Catalyst™ (DSC)™ that reduces up to 99% of carbon monoxide, hydrocarbons and nitrogen oxides from any commercial fuel burning engine.

GESi® technology can be installed on any rotary, spark or compression engine running on gasoline, propane, natural gas, diesel and bio-diesel to reduce up to 99% of toxic greenhouse and smog related emissions.

GESi® mufflers have been tested and certified using CARB and EPA testing standards. In Canada, GESi® has (ETV) Environmental Technology Verification.