PSI in Glen Burnie . They have a Mustang Dyno and Jeff is a good tuner .There are other shops that use PSI like JPC just to name one. Were back now so call Jeff at 410-766-7774.grnnv306 said:I live in Baltimore, MD and have experimented with several shops for work and tuning but I was wondering if any knew of a shop that would stand out above the rest. I am looking to get my car tuned and gone over with a fine tooth comb. Any suggestions?