Nett 3-way catalysts
BlueCAT SSI for Small Spark-Ignition Engines
The same CARB-proven technology used on thousands of forklift engines, made to fit small engines – generators, lawn and garden equipment, utility vehicles, and construction, farm and industrial machines.

- up to 98%CO removed
- up to 95%NOx and HC removed
- direct fitsame size as the OEM muffler
- LPG · CNG · petrolfuels
Why the BlueCAT SSI
Small Engines, Big Reductions
Direct Fit
Replaces the OEM muffler in the same envelope, keeping noise and back pressure.
Most Brands
Direct-fit designs for Briggs & Stratton, Honda, Kawasaki, Kohler and more; custom designs on request.
Safer
Blue heat shield with an ANSI/ISO hot-surface warning.
Optional Control
Works with an A/F controller for the best results on gas engines.
Literature & related
More Information
- BlueCAT SSI brochure
3-way catalyst for small spark-ignition engines · PDF, 2.6 MB - Honda engines
BlueCAT SSI for Honda · PDF, 4.9 MB - Kohler engines
BlueCAT SSI for Kohler · PDF, 4.9 MB
Not Sure Which One You Need?
Tell us about the job – the machine, the conditions and what it has to do – and we’ll help you choose the right Nett Technologies product.