It really depends on the dealer/service dept. Almost certainly your driveline. They will invent all sorts of reasons it voids a driveline warranty. And, I don't blame them. Too many idiots doing installs. However, I have developed good relations with dealers that would "overlook" things like that and help me out. Now, they could also void every waranty like power seats for example, saying you messed with the car, but they may be more inclined to honor that stuff. Ask your dealer. I do. Just say stright up, " if I put headers on my car, will you honor my waranty"? What if I pay you to do the install? I buy new cars knowing the waranty will likely be voided within 3 hours. But, I can fix just about anything. Good luck! Headers are so tempting aren't they
