I have a 98 cobra. Long tube headers, off road h pipe (no cats), flowmaster mufflers, no pipes after the mufflers. K&N air filter, and remote oil filter, and cooler. I was following my car and all of the sudden it started smoking out of both pipes when my wife gave it gas. When she let off the gas it would quit. The smoke is white or greyish. It burnt my eyes and nose when I smelled of it. The smoke didn't smell like oil or have a coolant smell. It was a real strong exhaust smell. It has light wisps of smoke at a idle, and a fair amount when I give it gas. There isn't any water in the oil, or oil in the water. I changed the 2 front o2 sensors, and checked all the connections to the intake and sensors. My battery died after all this started so I wasn't able to get codes if there was any. Anybody have any ideas.