[LS1] VY SS small cam, extractor's, unlic in W.A. Will it pass inspection?

[ONROADYNO]

I have a very standard looking VY SS ute.
It has a mildly worked LS1 with extractors and a single 3" system and my muffler needs replacing. Going with a mild steel muffler as this is on a budget.
I have read about cars needing a "cam permit". Is this for noise or emissions?

Thankyou

 

[someguy360]

WA's government run inspection centres are a lot like SA's

If they can hear any excessive lope or any indication of a worked engine they can perform an emissions test, this will cause you to fail and you will have to pull the cam, go back to stock, get it retuned and take it through again.

Chances are if it's above the legal DB limit it will fail too.