The dealer here in St. John's, Capital Mitsubishi, just replaced a faulty hydraulic pump on my 2008 Evo MR while my car was equipped with an aftermarket catback with no questions asked and no flags raised. So they're not all bad. Don't let one dealership turn you off an entire brand.

By the way, if you plan to drive your Evo in the winter you will need to protect that pump which is located up under the rear bumper on the passenger side. The body is aluminum and the salt gets up on it and corrodes it until the seal eventually gives out and they fail. Both myself and a friend who bought our Evos a month apart have had ours fail recently after just 3 winters.