ok my exhaust is leaking some kind of black fluid and i dont know what it is? someone told me it is just water in my exhaust and that it would go away, but it hasnt. it also starts to smoke so im not sure what is going on...

 

What color smoke? Is it at idle? WOT? More details please.. What other mods done to the car?

 

it is white smoke... all i have done to the car is an intake, header, and exhaust... and it smokes and leaks while im idling, im not sure if it does it while im driving...

 

try touching the black fluid to see what it feels like. could be water that turns black from the residue in the exhaust.