Like everyone says, if you drive in a sane manner you'll probably be fine. My exhaust is straight through from off the cat with only a big resonator and it's almost been a year since I've had it like that with no problems at all. Even in most cops per capita T-bay and living down the road from the cop shop I haven't had any issues, although I don't know if there's enough people up here to care

We'll have to see how long I last when I start driving back and forth to Guelph everyday for work in a few weeks.
I'm not familiar with the N1 construction, but technically anything without a baffle they can nail you for.