Rawze.com: Rawze's ISX Technical Discussion and more

I have a recently purchased a 2013 ISX 2350 that is giving us fits in cold weather (all emissions related).

Could someone point me in the right direction to put this truck on a diet? (de-mandate)
I have access to and some experience with insite.

ISX15 450

Eng# 79649153
Cal: EF10054.11

maybe get in touch with forum member 'running rough' for some advice?