I do like black smoke, but I installed an H2E and adrenaline on my early 99 and it blows way to much black smoke. When I installed it I was told to unplug the exhaust sensor that is located on the front of the motor. The tube that runs from the sensor to the passenger side exhaust manifold had holes in it so I threw it away and put a plug in the manifold. The truck runs ok, but idles rough and blows way to much smoke. The fuel mileage isn't very good at all either. When I put the 6 position chip in the BTS 120 hp race setting the truck blows the thickest black smoke when I barely press the pedal to go and gets worse as I go faster. I drive this truck like an old lady so hammering the pedal isn't the mileage problem.