So regarding the Mosselman thermostat upgrade, the only real benefit is that it's aimed to keep the oil temperatures lower. So if that is the only benefit, why not just swap out the thermostat rather than spend $400 to replace the entire housing?
Something like the FTP lower oil temp thermostat fir $45.
https://www.ftpmotorsport.com.tw/pro...l-cooler-valve
Granted, it's not as pretty lol