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      11-21-2012, 09:23 PM   #9
skins333's Avatar
Drives: '08 E93 BMW M3 MR/'12 x5d SG
Join Date: May 2009
Location: Northern VA

Posts: 985
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I never used Ptuning but was very happy with Mach V. I would say though if you are a car shop snob you will like RRT. They have pretty incredible facilities and equipment but definitely on the pricey side. I liked IMA Motorsports in Chantilly too.
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