[95birdible]

Here is hypothetical: Say you install a trailer hitch on your brand new SS Camaro so you can put your mountain bikes on it. 3,000 miles in your transmission starts slipping, your rear end starts whining, and you take it to the dealership. This would be the same as adding a catch can to your car. It is not a factory OEM installed item and GM or any other manufacturer could refuse and void your warranty saying adding the hitch causes the failures to your car. BS if you ask me.