I don't think you will have fit and finish issues with either, but there are still other exhausts out there that are the same way. It will come down to just how much sound you will put up with, price range which already seems like you're willing to pay for quality parts, but also style. Split muffler types, dual mufflers that go sideways, or the straight through with elongated mufflers. Also the tips, what type of tips you may want will also carry "some" factor.

Someone selling a used Greddy like mine here:

http://www.the370z.com/parts-sale-pr...-lip-more.html