Anyone here is experiencing problems with the exhaust system? Mine has terrible knocking sound. Damn angry.. everytime the RPM drops low, the knocking sound will appear near the manifold.

Yes. The tailpipes are shaking like a rattlesnake's tail. But I have got a problem coming from the front. Sounds like the the vibrating parts is knocking into something when the rpm is low.

And then, the 'drum' of the exhaust will burst easily.