Why not?The sound is more refined and toned nicer without the Corsa rasp. Can't do that here because of bi-yearly emission inspections
Anything past the cats doesn't involve passing emissions or visual inspection.
you could put the cutouts on the stock exhaust and it will pass closed.
The Corsa mids are really awesome cruising closed, quiet like stock unless you get on it.
I closed off my open element back to stock and took out the plug I put in the silencer.
Now that the exhaust has a nicer lower purring sound at part throttle, I like it better like that.