Originally Posted by 2 Stangz
A Borla representative was already able to get back to me. He said the only difference is "fine adjustment for fitting."
I have these 05-09 Stingers on my 10 GT so I was curious.
I see you already got the answer! Yes, the 2010 GT's have a slight different fitment, so the Borla has a separate axleback available. They're a very precise and particular company. Even if the fitment is slightly different, they'll produce both where as other companies make a single universal set.