Hey, I have a 2007 5.7 awd. My mods include the AFE stage 2, SLP lm 1, and the predator. I am experiencing a ticking/knocking noise at partial throttle only while driving, and I'm sure its the egr check valve noise being amplified by my cai. My predator is relatively new and does not have the egr option, and according to DS tech support, you can't backdate the new predators. I've tried and it doesn't work. So, is there any way I could possibly disable my egr? Thanks.