Well I know this is always brought up.. My g/f dad has a 06 ext cab 4x4 lbz. It has ppe xcellerator and intake and exhaust on 33s and 20s. He is always talking smack to me about duramax this and dodge blows yada yada.. I wanna call him out.. What yall think? Ill be running smarty 4.2 on sw9 and...