Cool, that setup will definitely give you some good braking power but you could get pulled up next time you go for a WOF as I'm pretty sure you need a cert for brake mods, so you might have to add another $4-500 for the low volume cert...
My change would probably go un-noticed as they still look factory and arent much bigger than the stock items, although it technically still needs to be certed
I hadn't driven it for 3 months so wanted to give it a good run. I've had no issues since but the DBA 4000s help.