Hows this,
Had an interseting conversation with a recognised , approved engineer.
Because the SW20 didnt come with a SC or ITB's no chance to get appeoval from RTA unless i Do the government approved sniff test. $3,500 single shot , fail or not fail

BUT l can put a turbo on with out any sniff test because they came out turboed !!!!!!!
I have many engineers to sign that off for the TRA
So there you go what rediculous laws.