Quote Originally Posted by Sprint View Post
fwiw, AC-Delco are part of the General Motors business empire, and are covered by a 2 year/50,000km warranty same as any other GM part.....
You sure about that??? Their intake air and cabin air filters have a 12 month, 12000 mile (20000km) warranty.
ACDelco | Air Filter - Engine Air Filter - Cabin Air Filter

If you look up their oil filters no warranty is mentioned.