It's unburnt fuel coming out your tailpipe. The bigger, more well known ones have been shut down or had to close their doors before the EPA got to them.īlack smoke is a sign of a poorly tuned vehicle, one that's 'hardware' is not set up chosen correctly to match other components (ie, large injectors, small turbo), or if you straight up get underneath the turbo and it has to catch up with the fuel you demanded with your right foot. The EPA is seriously creating fake accounts and asking 'fake' emissions delete questions like 'where to' and 'how to' to go after a lot of these companies. It's this type of mentality that has lead to the huge EPA crackdown lately for anything truck related, and has put a lot of tuning companies out of business. I am a part of a diesel forum (trucks) as I own one too. Click to expand.Please don't feed the troll.ĭo NOT get a truck to 'Roll Coal'.
