I have the low temp thermostat on my 986 and thinking about getting it on my 987.2 base (9A1 but with port injection) - from the product notes LN says it might trigger a pending or active CEL:
I'll probably get one when it is time to do the WP.
On my 986 (2000 S) that was heavily tracked, the low temp thermostat let me start a session with a lower "base" of temperature, which prolonged my session time before things got too hot.