So after receiving a pretty terrible product from Ikon I decided not to give them a second chance because I am pretty sure that the fitment will be off and to make the lip look presentable I will have to spend more money.
I decided to go with the original company who created this lip for the 2013+ Z, Aero Works.
Quality and fitment on their lip is 10/10.
They make a version with the carbon fiber middle and FRP sides, or completely carbon fiber.
In the US you can only get it from one importer who works directly with Aero Works, My Japan Direct. You can call or email KJ and ask any questions, he was very helpful.
https://myjapandirect.com/product/ae...4-after-model/
Will post a separate review when I have it installed.