New factory catalytic converter for 2016-18 Miatas. Normally we modify your existing stock catalytic converter for a BBR turbo, but this requires you to send it in to us and some people choose not to do so for various reasons. If you don't want us to modify your existing unit for use in a BBR turbo, we can start with one of these.
The picture shows the cat after modification. This part number is for the unmodified, stock cat.