Since my GT is convertible I want to get Subframe Connectors (heard it should be the first thing I do before I adding more power). I called a local place that I go to, but they said they won't install them because if it’s welded incorrectly the car wouldn't drive the way it’s supposed to. They are more of an import tuner place, so I think they just don't want to do it. Is it really that difficult/risky to install? I know nothing about welding or Subframe Connectors for that matter. Still a newbie to the Mustang world, so please forgive me if I asked a stupid question.