I've had most of my regular maintenance done over at grand prix subaru, in hicksville, and they've been fine. They said they can install anything I bring them, but I'm wondering if there's any idependant performance shops close by, that might have more aftermarket-part expierience, or tuning suggestions. Or am I wrong, and a place like grand prix, would actually know best? ..I've also heard of Metric over in huntington. Any others?