I have a 2007 c5500 kodiak bus with a 6.6 lly duramax. It’s one of very few of its year to have an lly in it so I’m haveing a hard time finding exact parts and kits on any site because they all say it should be an lmm because it’s an 07. I’m trying to get a egr delete kit for it so if anyone knows or has link to a site that has one or knows if I can buy a kit for any lly of an older model and it still work would appreciate it.