[mwebb]

here is scan data using VCDS

the green and faint blue traces are EGT graphed over time, max (upper limit) on the graph is 1000c and min (lower limit) on the graph is 300c
during Wide Open Throttle looking at knock retard per cylinder chasing possible restricted injectors

peak exhaust gas temperatures are upward of 800c at WOT fr0m 30mph to 70mph , that is over 1400f .
Celsius to Fahrenheit converter
bank 1 has more restricted injectors than bank 2 , but EGT on both banks is about the same

does lean condition = greater exhaust gas temperature ?
no it does not

put the myth to sleep

to be fair
the system is in fuel control and only a few cylinders are slightly lean
the cylinders in knock retard
the others are slightly rich - fuel control is per bank - both banks are adding at WOT around 5%

still EGT is pretty consistent bank to bank at all loads