Hello, i have a 91 rrc that blows white smoke. This would be normal in the cold weather but it doesn't go away even after the engine is warm and all. if i'm correct white is just water from combustion that turns to steam. why wouldn't the exhaust be hot enough to burn steam? My only theory is that this summer we drilled out the cat converters and this is allowing the white to get by easier before vaporizing. Any help would be appreciated, should i worry or not? Thanks you