High Flow Metallic Substrate Catalytic Converter
These are the minimum SCCA STX legal catalytic converts, 3″ long and 100 cpsi (cell per square inch). Minimal exhaust flow resistance. I passed emissions in Colorado. Probably illegal in California and we should probably say “for off-road use only”.
- Stainless Steel Case
- 3.5″ (89mm) long
- 3″ (76mm) outside diameter
- 100 cpsi metallic substrate
- 3″ core (substrate) length
SALE $95 each. NOW $79
Installed on BMW Headers *** And Passed Emissions 
Bolt-on to reduce emissions and a quieter ride on the long drive to the race track.