ghettodeffender

hello, i ordered the msa twice pipes and was wondering if anyone knows if its possible to weld in catalytic converters to it and if i need one or two on that set up. i wouldnt put cats in, but my car is a 1978 and i live in california so you all know that song and dance.

turbopuppy

Possible? yes
Needed? Yes if factory Ca-emission equipped.