TBR7 exhaust weld and catalytic

[kb21guru]

For some people who may not have a welder.
muffler shops are a awesome place.
It's called a "Test Pipe"
A test pipe is a section of pipe that replaces the catalytic converters.
The muffler shop will cut your cat out and weld in a pipe to replace it.
Not everyone has a welder or 150 bucks to buy a exhaust system. So this reply is simply another option.