[Whipple]

Im trying to get myself prepared when I finally get a M6 gran coupe,I would appreciate if anyone knows a reputable shop the can work on and tune these cars,
the only ones I know are Enzo,and Petrolwerks and I don't fully know there reputation but if you guys know really good shops I would love to know,
I would think keeping a shop as close as possible to where one lives is important ,I don't live to far from New Jersey either ,Thanks