ECU upgrade?
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A friend of mine got her front driver and passenger windows tinted to match the factory tinted rear windows and her dealership tried to void her warranty. I advised her to make them show where the front tint does anything to adversely affect anything on her car which would require it to be voided. They could'nt show any proof so they had to keep her warranty intact, so she now uses a different dealership for maintenance work.
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