For anyone in Southwest Florida, I can't say enough about Rennhaus in Sarasota. It's a family owned and operated business. Way cheaper than the dealership, and much better service. But still a large operation; they have 5 car lifts. I've been taking my 2000 Boxster S there for the last year. They will do as much or as little as you want them to. They only service Porsche, BMW, and Mercedes.
RENN HAUS - Tuning for Mercedes Benz | Porsche | BMW | Mini