Well, A few days it was cold out and I see smoke near the engine bay. I looked under the car and found a huge exhaust leak. It is at the end of the manifold and before the cat. I am 99% it is leaking where the "mesh" is. Anyone had this problem before. I had this exhaust leak after I put on my custom CIA. Do you guys think it can be fixed or I need a new part. If I do need to replace it, I am thinking to get OBX Headers or RIPP (If I can find one) but it is catless. Can My car pass without the cat? It is driving me nuts because it makes like a hissing sound every time I accelerate.