> I have no problem with fining the idiots who remove particulate filters and sensors to be able to 'roll coal' at urban stoplights. That's senseless. But expen

> I have no problem with fining the idiots who remove particulate filters and sensors to be able to 'roll coal' at urban stoplights. That's senseless. But expensive emissions control systems are a problem. yeah, what percent of the guy’s business went to people who wanted to roll coal anyway? Here folks just assume it was for the worst case, but they seem ignorant of the concerns you pose. I modified my diesel pickup because restoring the OEM emissions package was about $12k, more than 50% of the resale value. The truck still had 6000 hours of engine life left. My fix was about $800 and it not only passed emissions, it passed the dyno check too. It would have been cheaper if I welded the parts in myself, but I stuck with doing fuel map optimization. The value you can produce from these vehicles in a rural setting is fantastic and the designed-in longevity means environmental impact from manufacturing is amortized over very long time, unlike commuter cars which nowadays seem purposely designed to last only as long as the loan.