I own a 05 coupe that has had the spoiler added on.I believe
that the spoiler is a stock spoiler, becacause I have compared
it to other G's w/ spoiler. It has started to come loose slightly
on the right side, the dealership says that one of the studs is stripped
out and the clip has came off . They are going to repair it at no cost
to me. My question is, is there any way to know for sure that the spoiler I
have is a stock spoiler ? Any input would be appreciated. Thanks

 

How about posting a pic of the spoiler?

 

stock spolier has a plug that u plug in on the trunk so its like plug n play,after market u have to make the connection and run the wire down to the brake light.

 

Well I think the shear fact that the dealer is replacing it at no cost means it's stock or oem. Unless the dealer damaged it themselves and are trying to cover their track.

 

Will I be able to see the plug if I pull down the liner?

 

You are probably right. I bought the car under warranty so thet would be
liable I suppose.

 

Does it look like this? lol

 

If it's OEM it will look like the one above or you could have asked the
stealership if you have any doubts.

 

ditto