Late reply:-) but Turner Motorsport is awesome and just over NH line in MA. When I lived in Kittery that’s where I went with stuff beyond my pay grade.
good luck!
'01 M3, JB/IR, SS, TCK DA, Apex, TMS CSL, HTE, 4:10 gears - original owner '00 slicktop Touring converting to full M3 Touring
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