Boston’s Local Independent Mechanic
Specializing in BMW, Porsche, and Mini.
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Turbocharged E46 Manifold replacement
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Porsche Shop Work
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GPS Team Photo
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GPS Built BMW S14
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2006 Porsche Cayman S track car
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GPS Shop in Brighton
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12 Hours of Sebring
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#54 Black Swan Racing
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E46 M3 on track day
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Recent Porsche in for service
READ OUR CUSTOMER REVIEWS
"After years of owning my Porsche and going to multiple shops with horrible repairs that led to different problems, I've learned my lesson and now stick to the real professionals: German Performance."
"Can't recommend Marc highly enough."
"These guys are the real thing. Marc has material Porsche and BMW racing experience, yet treats you like you'd expect from your neighborhood mechanic."
"Can't recommend Marc highly enough."
"These guys are the real thing. Marc has material Porsche and BMW racing experience, yet treats you like you'd expect from your neighborhood mechanic."
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