My guess is that you signed a document when you dropped off the car that releases them from liability from any non-OEM parts on the car. That is pretty standard fare for a car dealership and I wouldn't expect them to pay for the damage to it. Thats the legal side of it.
As for the non-legal, customer service side of it, they should pay to repair it, maybe not replace the whole $2k kit but definitely should offer something. That would be the correct thing to do.
-Mike Paisan
Maintaining, Modifying and Educating TriState Enthusiasts since 2001.
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