I was wondering if anyone had done one of these swaps in Colorado and how they managed to work out the emissions. Obviously if you converted a gas vehicle you can't take it to the same emissions center. Will they let you register it as diesel? Or do you just take it to Diesel emissions and they never know? Just wondering if this is an emissions legal swap. I googled this but all i found was in Cali you could if the engine was newer than the chassis and the engine was registered for road use in the USA, but they said this was still sketchy.