To delete or not to delete ?

ShinerBock wrote:
I don't think anyone believes they are exempt from emissions.

However, I do think it is funny that someone driving an older pre 2003 with original emissions equipment brow beating a deleted modern truck when they are probably emitting way more than the deleted modern diesel. They don't know that the effectiveness of catalytic converters degrade over time and that the emissions standards of their vehicle was way less stringent than today.

They also don't know that due to VG turbos, better turbo efficiency, common rail, more injection events, higher fuel pressures, and cam profiles made for emissions; a modern deleted diesel emits less than a pre-2003 or even some pre-2007 diesels because these were all things added to specifically reduce emissions. I know that a deleted Cummins 6.7L on a stock tune emits less than a stock pre 2007.5 5.9L Cummins.

In places like California where the climate, geography, and population warrants tighter emissions because the NOx just stagnates in the troposphere and cannot dissipate into the stratosphere where it is good ozone; then I can see the effectiveness of these laws. Although population density does the most harm in regards to NOx, but people in places like southern California are not willing to move or spread out yet they will not hesitate to lecture people from other areas about their emissions.