cat back and cold air system will not affect warranty
anything more can potentially affect the warranty
void is a big word, restrict is much more accurate
dont put the too much faith in the magnuson act, the onus is on the consumer to prove that the modifications didnt cause the failure.....dm's will restrict the warranty and will be up to the consumer to prove the failure non related
dont bash me thats reality
tuning, throttle bodies, headers, force inductions, camshaft replacement, etc will have the potential to restrict your warranty
and its only fair, speed cost money, when warranty fraud occurs, we all pay for that cost
luke