Jay Honeck wrote:
(Incidentally, he said that the best thing that EVER happened to
their business was everyone running "lean of peak" and driving their EGTs up
above 1500 degrees. As temperatures approach 1600 degrees, the metal simply
starts to fail, and you end up saving pennies on gas, and blowing dollars on
exhaust systems.)

Done improperly LOP will start to melt exhaust systems. If you're
getting over 1500 EGT then you're not LOP, you're at peak. 75 LOP is
the same temp as 75 ROP.