You are correct, the RPM act will only allow an engine to be run without emissions equipment if it is in a non licenesed competition use only vehicle. You will NEVER see anything that will make it legal to subvert emissions equipment on a vehicle that is licensed to operate on public roadways. That being said, yes emissions deletes are extremely common, and I used to field 2-3 phone calls everyday when I worked a diesel pickup performance tech line with people asking about them, or asking how to fix the issues they are now having due to running poor quality parts/ tuning.OK, I'll bite... Not having read any more on the RPM Act than, "The RPM ACT is a movement against the EPA and the recent regulatory actions that will prevent modification of personal vehicles for the intent of racing or modifying for off-road use. " which I found with a quick on-line search, how will this help me with my 2014 DEF diesel? Not being argumentative!!! I'm looking for some education/discussion. Are guys like me actually stripping the DEF mechanisms out of their trucks? I know I'm not mechanically-minded enough to try that!