Would you rather have your engine breath unburt fuel/dirty air, or clean air?
You need to do the DPF delete first, or you probably wont get it to clean out during the regens since the EGR delete will drop your EGTs (exhaust gas temps).
Spend some time under the hood and look how it's routed in the air intake. Its dirty as hell, and has been the cause of most of my CEL's. I've got to get a full EGR cleaning at 27k miles because it's gummed my turbo up again.
You need to do the DPF delete first, or you probably wont get it to clean out during the regens since the EGR delete will drop your EGTs (exhaust gas temps).
Spend some time under the hood and look how it's routed in the air intake. Its dirty as hell, and has been the cause of most of my CEL's. I've got to get a full EGR cleaning at 27k miles because it's gummed my turbo up again.