Originally Posted by MSport35TT
Just had this convo with my SA. He said as long as they cant relate the problem you are attempting to service to the Aftermarket part then your fine. If they do find that the part caused or possibly cause the problem that only that area of the car is voided.
Ex: downpipes and 02 sensors going. 02 sensors would not be covered.
This is just other words for no matter what modifications you do, the warranty will most likely be voided. Just finished dealing with the same scenario when the modifications I had okay'd with a service adviser voided my warranty.