Regulations for modification in Vic?

[WhiteRice]

Ok. I tried searching, but I'm a n00b, and I got pwned. Couldn't find much, so here goes...

Just wondering about various performance mods and if they're legal in Vic with/without engineer's certificate. Does anyone have any advice?

1. Extractors/exhaust should be ok?

2. Intake manifold/throttle body?

3. Cams/valvetrain?

4. Brake rotors/braided brake lines?

5. ECU?

Cheers

[Red_EG4]

had a look on here?
http://www.vicroads.vic.gov.au/Home/RulesStandardsRegulations/VehicleStandardsInformation/

[WhiteRice]

Yep, doesn't mention much, except for brake lines/extractors. It's pretty general.
My main concern is cams/valvetrain

[M@lew]

1 and 2 are fine. The last 3 no idea.

[redefine]

http://www.vicroads.vic.gov.au/NR/rdonlyres/CC48FC10-4D57-4F04-82E1-3BD72EF88340/0/VSI8.pdf

how bout that one. pretty in depth.