After having it for a year I decided to throw caution to the wind, say to hell with the warranty and go all out with my 2011 V sedan. 2.55 pulley swap, ID850 injectors, Airaid intake, 160 thermostat, ported snout, ported throttle body, Stainless Steel Works headers and full exhaust, Corsa sport mufflers and a tune. Got it back from the shop and drove it for a few weeks. Loved every bit of it and it put down 551 to the wheels. Decided I wanted to drop a cam in it so I handed it over back to the shop. Got it back with 613RWHP, the thing is a beast however...while i was driving it home it started doing some very odd things. It idled really low around 400 and while driving would RPM surge from 2K to 3K a couple times for no reason. The next day when driving to work 10 minutes after starting it I came to my first stop light. At a stop it threw a service engine code and acted like it was going to stall out. When I went to accelerate from a stop it rev'd up but didnt go anywhere. Almost like the car was in nuetral, never went into gear. If i gave it very little throttle it creeped enough to pull it off to the side of the road. Got it towed to the shop and they looked at it and said it was a supercharger overboost code p012b, bumped up the boost limit (put out a little over 13 at last dyno) and map enable/disable. Guy said he drove it and it drove fine even got on it a couple times so i pick it up, drive it home and the exact same thing happens again. Currently its back at their shop but Im starting to question if they know what they are doing as far as tuning. Its a shop that came highly recommended in the Tampa area of FL and specialize in LS motors. Anyone on here with their wealth of experience and knowledge seen anything like this before? Contemplating having it towed to Jeremy Formato 45 min away to see if he can fix the tune (if thats the issue).