Don't know anything about your regs there but what about just setting everything up and then taking the side pipes off for inspection. The once that is done, put them on. I can takemine off in about 5 minutes, but I don't have to use the under car exhaust, so that would add time. Just a thught, but it may not work at all there.
As for doing it with a cable attachment, that is illegal in California and will get you a ticket. All cut outs here that go to short exhausts must have a cap bolted to them so you have to get out of the car and remove it. And the police do look for this on any car with pipes coming out short to the sides.
Good Luck,
Ron
