Greddy TI-C to Fast Intentions catback

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Hey there!

I just bought my Z recently and it came with a TI-C Greddy catback. I don't particularly like it so I made a few search here on the forum and decide to go for the Fast Intention instead.

My problem is that I sold the Greddy catback while it's still on the car at the moment and I will order the new one only this week. So I need to remove the catback and wait for the new one to arrive. The guy who bought the catback want to have off course all he needs to install it so he told me he need the evap relocation kit and an exhaust shield. I want to give him all he needs but I also want to be sure I won't give away things that I will need for the fast intentions install.

Is there any OEM part that I must be careful to keep when removing the Greddy ? Or is there and OEM part that might have been removed when the Greddy was install that I would need to check to be sure I'm ok for the FI ?

Thanks a lot guys !