Description
Poisonous small engine exhaust fumes endanger landscape crews working inside greenhouses, parking garages, and enclosed trailers. The Bartell Morrison BlueCAT 3-Way Catalytic muffler replaces standard factory exhaust boxes on Honda GX engines. This bolt-on catalytic muffler scrubs carbon monoxide, hydrocarbons, and nitrogen oxides from engine emissions. It cannot reduce emissions on engines with worn piston rings.
Heavy gauge stainless steel canister walls house a ceramic honeycomb core coated in platinum, palladium, and rhodium wash. Precision laser-cut flange plates bolt straight to Honda GX120, GX160, and GX200 cylinder head exhaust ports without manifold modifications. High-temperature ceramic heat wrap reduces external radiant heat transfer to engine fuel tanks and recoil starters. Internal baffling controls exhaust gas expansion to maintain factory backpressure levels, preventing exhaust valve burn on small commercial V-twin and single-cylinder engines.
Catalytic Exhaust Hardware Build
Groundskeepers operating power trowels, sod cutters, and aerators inside semi-enclosed structures must reduce toxic exhaust emissions. This muffler replaces stock Honda silencers with active three-way catalytic scrubbing.
- Three-way catalytic element converts carbon monoxide and unburnt fuel into harmless gases
- Heavy stainless steel canister construction eliminates rust corrosion from exhaust acids
- Direct bolt pattern aligns to Honda GX120 GX160 and GX200 engine blocks
- Internal baffling keeps exhaust backpressure within Honda factory engineering tolerances
- Integrated perforated heat shield protects technicians against accidental contact skin burns
- Precision welded exhaust pipe outlet directs hot fumes away from engine carburetors
- Heavy mounting flange prevents exhaust gasket blowouts under continuous vibration
Exhaust Gas Telemetry Analysis
Emissions dyno testing on a Honda GX200 engine at 3600 RPM shows the catalyst cuts carbon monoxide output by ninety percent once internal core temperatures reach 550 degrees Fahrenheit. Acoustic sound meters register 84 dBA at three feet, matching stock muffler noise dampening. Exhaust backpressure measures 0.42 PSI under full mechanical load, protecting exhaust valves against thermal seat recession. The stainless steel housing outer surface reaches 620 degrees Fahrenheit during sustained runs, confirming active catalytic light-off operation.
Engine Suitability Negative Limits
Mechanics unbolt the factory muffler and mount this catalytic unit using new high-temperature exhaust gaskets and lock washers. Ensure proper engine air-fuel tuning to maintain catalyst life. Do not install this unit on rich-running carbureted engines burning oil, or on diesel and two-stroke oil-mix engines.
- Exhaust flange nuts require re-torquing to 14 foot-pounds after the first five operating hours
- Spark arrestor screen requires wire brush cleaning every fifty operating hours
- Internal catalytic core demands visual inspection for carbon soot fouling every hundred hours
Warranty Coverage Carton Items
Bartell Morrison covers this BlueCAT catalytic muffler with a 1-Year commercial limited warranty. The carton package includes the stainless steel catalytic muffler unit, engine exhaust mounting flange hardware, heat protection shield, and step-by-step engine fitment instruction manual.