Hi everyone... I read the thread regarding carbon cleaning in Boston and, everybody agreed that "Northeast Autobahn" is the best place to go for... But unfortunately, I'm been trying to contact them by phone and by emails, so far no luck. May I ask you, do anyone here knows a better way to contact them or if someone knows other places around Worcester or Boston, I'm located in Natick ma. I contacted the "Colonial VW in Westborought and the price is $1250. My 2012 GTI with 88k is giving me random misfire, I already changed the "ignition coil" and spark plugs, but now the engine light and the cruise control light randomly pops up, and after I shutting off the engine, the cruise control light is gone, but the check engine remains. Thank you in advance.