I like using the Aisin thermostat. It has a higher temp threshold. Also if you still experience over heating after replacing all of that could mean the O rings on the water pump or the bleeder valve itself deteriorates. Very common issues for 03 models. Cool video man 👍🏼
I believe it’s the Thermostat to oil cooler hose. There are 2 an upper and lower. This is the upper I believe. www.partsgeek.com/6fpckbh-nissan-350z-cooling-hose.html