Exhaust Manifold Gasket Leak and click, click noise?

There are a couple of problems with not fixing the leak. It is theoretically possible for the leaking exhaust gasses to etch the exhaust port in the head, making head replacement necessary. Also the leaking exhaust gasses will contribute to lesser turbo performance, which contributes to poorer engine performance. The exhaust leak needs to be repaired as soon as possible.

Richard