1. Living in south alabama where the winters are mild, is it ok to delete the grid heater

2. I'm not planning on going into the engine on this truck, it is a daily driver, with that said, with egr delete, and valve body delete, and whether I do or not delete the grid heater, will it be a benefit to add cold air induction and maybe a banks air inlet horn (sorry if thats not the correct name) this is my first diesel so I'm learning. Thanks in advance for the help. Also I will be adding a tuner