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Posted
39 minutes ago, PunchT37 said:

If it`s not the engine, then maybe the cat core is broken and rattling around. The cat is usually very hot and driving through cold water shocks the ****** out of it.

I was told it has hollowed out cats already. Downstream o2s throw codes and it sounds a little more aggressive so I believe it. I'll still go smack it while it's running and see if that changes anything

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