CERBERUSlucid,
Glad you asked about the brake booster hose. On the 370Z the hose that we have in silicone can be simply replaced without any problems.
There is a check valve in the brake booster system to ensure your brakes work even when the car is not producing a vaccum but on the 370Z that valve is in a hidden hose different from the one being replaced and makes it extremely simple.
Other Z models were not so lucky....aka 350Z.
You can find our silicone brake booster hose, in stock,
HERE.
The only thing you will need to watch is when installing the new hose be careful not to push the hose too hard or you will be removing the cowl panel to hold the other side of the hose and fish it back through the void. Vaseline is your friend when installing.