Please dont spread misinformation. Plenty of dealers can tell if a car has been tuned, regardless if you map it back to stock or remove the hardware before taking to the dealer. See VAG tunes, they all have this issue where the ECU will show how many times its been reset from stock (diff than just unplugging your battery)
The magsun-moss (sp?) warranty act does say that they have to prove that the tune is the issue, and some dealers will ignore and fix, some wont. The issue is that if the dealership wants to fight it, they have much more captial and resources to do so than you do. TLDR is if you tune, you are running a risk if something breaks IE turbo, manifold, gaskets, plugs. If you tune and your suspension breaks you can be sure they wont point to the tune as the issue (obviously)
The magsun-moss (sp?) warranty act does say that they have to prove that the tune is the issue, and some dealers will ignore and fix, some wont. The issue is that if the dealership wants to fight it, they have much more captial and resources to do so than you do. TLDR is if you tune, you are running a risk if something breaks IE turbo, manifold, gaskets, plugs. If you tune and your suspension breaks you can be sure they wont point to the tune as the issue (obviously)

