I have a 2010 F-250 6.4L I have had a Banks monster exhaust from the filter back, it has been on for almost 2 years, I just installed a Banks ram air last week. 2 days ago my check engine light came on, the dealer said that my DPF was bad with code P2002. I spoke with a tech at Banks and they are sending me a smaller air filter. I dont blow any smoke and I haven't seen or heard a regen in awhile. I can't believe the DPF would fail in one week after installing the ram air. I don't have a tuner or anything else done to the truck. Any help would be great...