These are 49-State Legal...
We have an ALL NEW HI-FLOW CAT for the twin turbo 3000GT and Stealth!! It is a 3.0 " pipe with heavy gauge steel swivel flanges on each end for simple installation.
Note that the flange holes are set for 10mm bolts.
Add gaskets if you need them (not included).
They DO NOT have a CARB number for California Emissions