[VipinLJ]

Dinan piggybacks will void warranty too. Thing is they might pay if you have issues is all. But apparently, to get them to pay, you'll have to prove that it was caused by the product. And BMW can claim everything was caused by the product even if it wasn't. In which case you'll be out of luck and you'll have to pay up. I read about this issue in a thread a while back where someone faced issues with BMW voiding warranty claiming it was the Dinan product that caused it and Dinan said it wasn't their product that caused it and so they wouldn't pay.