DR now makes their n54 manifolds in China. Their quality has gone down so I have read. Best of luck man! Use the quality SS zip ties, overlap plnety with the exhaust wrap, and it really helps if you have a buddy with you. You want it on there SNUG AF with a good overlap.
I should clarify, on my ACF kit the exhaust wrap was not needed on the manifold as none of the oil lines or wastegate lines came close to it. Now DR may be different. If ANY line can come close to a 'hot part' you are much better off fire sleeving the line:
https://www.amazon.com/Sleeve-Motors.../dp/B01HALP4H0 <-- using stuff like that. It is a PITA to redo lines etc. If a line could move from violent acceleration or a long turn etc and come in contact with the manifold downpipe etc fire wrap it.
GOLD TAPE DOES FUCK ALL. DO NOT USE GOLD TAPE. 100% NOT NEEDED. DOES NOTHING. LOOKS LIKE FUCKING ABSOLUTE GARBAGE.