Definitely more so, as using an injector to enable editing is more detectable than solely slipping in a modified .mpq. However, my experience with these kinds of model edits (gear to gear swaps, race to race) do not get you banned. I've been using race-to-race model edits since way back and have never been banned, been using the injector method for a couple weeks on live servers and still going strong. Don't exploit with them and you'll probably be okay.
That said, you have no right to complain if using this does get you banned.