just confirmed the part numbers on my exhaust were PTR08-53090, which from doing a little research the only parts that where engraved were part #PTR08-53091.

 

Spoke to Sewell this morning and they claim the exhaust that is engraved with part #PTR08-53091 is not available to the public yet. I went on to tell them that is not correct and there are many IS owners with it. They said they'll look into it and I gave them the link to this thread so they can see pictures for themselves. It's not worth sending this exhaust back but maybe acouple FSport emblems would make up for this confusion .