Any update on your dilemma? I was thinking that as the purchaser of their supercharger (whether through your shop or another authorized dealer) you have every right to call and talk to Magnuson customer service yourself. Perhaps get an update or find out if they even know what is happening with your car. It would be nice to rely on the shop to handle everything but nowadays that type of service is hard to come by.
Thanks for the feedback by the way. It sucks to have to go through all that but hopefully this info can help others in the future. Good luck.
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