I did muffler delete and it was a bit too loud for my liking since it also removes the standard valve control on the oem muffler.
I'd suggest a catless dp with res delete, if you still want more noise after this, open the valve manually or code it open. You will need a tune with the dp otherwise it throws a CEL (or you can get modules that remove the CEL if you don't want to go for a tune).
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