i am in melbourne and have just done all of this with my crx, vic roads will not update your rego without an engineers report. because it is an increase of more then 10% in power.

my engineer has charged me $600 all up to complete the car, i need to return it to close to stock eg, height and smaller wheels and exhaust has to be legal noise etc.

after your car has passed all the above he will do a brake test, and you get your certificate.

contact me for details or you use the vass list on vic roads to find an engineer.