Hi guys another legal vs illegal topic..
The short answer is yes they will be due to exceeding the noise threshold.
I think I've said this before, if you are worried if things are legal or not this is the wrong game to play.
If you ride in Urban/Suburban Sydney with a HD, YOU WILL GET PULLED OVER. Whether or not it is justified, a "RBT" or you get a Raptor cop on a bad day and get bent over.
Everything is illegal when modified, Police can and will defect a stock bike if they chose to.
Ride it, Get pulled over, Yes sir no sir three bags full sir... cop it on the chin, replace exhaust, clear EPA, put old one back on rinse and repeat.
Does any have Turn out exhaust in this forum?