The gauge is buffered and therefore not accurate.
My car is a 530 but just as an example, my car is fully warmed at 106 but it will read noon when ktemp is still in the 80's all the way to 106.
Best bet is unlock the comp and use test 7 ktemp.
ESS Tuning m60 version software
m60 intake manifold
3" obx catback
full powerflex urethane setup
m5 rear sway bar
M5 chassis rods
M5 3.15 lsd
Bc-r coilovers w/ swift springs
ss braided brake lines