Hey! I have 2007 6.7L automatic megacab dually. I've been doing my research on different programmers (crossing my fingers this will be my xmas present). My two top interests are the smarty jr and superchips flashpaq. I want my fuel economy to go up more than anything and I want the DPF delete. Any opinions, recommendations, etc. on which way I'll get my money's worth and what do yall suggest as far as straight pipe? I'd really appreciate the opinions! Thanks!