Hi JD,
Dickson is really inconsistent. I've seen some people get away with things that others got picked up on. So here's my 2cents:
does anyone know if stock 33 springs will fit into TEIN coilovers ?? or what will ? - the standard springs will not fit into your Teins, different diameter. Also, they tend not to like height adjustable coilovers. One of my brothers just wound them up so the car was legal height and he got away with it while my other brother had to get his coilovers engineered and locked off at a certain height to pass.
HKS Air Pod (fully secured, but not in an enclosed box) - if the airfilter is exposed, it is considered a fire hazzard so they might pick on that
Front Mount IC - if it isn't original from factory, they won't like it. it changes emissions etc etc
Boost guage on dash - i think it depends on where it's positioned, ie: does it restrict vision, is it likely to cause injury in case of crash
Turbo Timer - illegal, for safety reasons, it will keep the engine running incase of a crash
tinted windows (think they will defn get me here) - depends on how dark
full 3inch apexi exhaust (gonna buy a silencer to quieten before i go in) - depends on what sort of a silencer your planning on getting. They don't like the ones that attach to the exhaust tips, they'll want you to weld it in. They also know about people getting "rego mufflers" just for the inspection. My brother did get away with his but they did make a note on the inspection sheet. It looked pretty funny, a 3inch pipe reduced to a 1 1/4 inch pipe and a Hyundai muffler.
manual boost controller - manual or electronic, all illegal, changes performance, emissions etc - that's if they find it though
Apexi Blow Off Valve - only legal if it's plumbed back into the system, if it vents to atmosphere again it changes emissions, fire hazzard etc
Strut Brace - should be ok as long as it's secured and not obstructing anything in the engine bay
TEIN Coilovers - like I said above. I was also talking to a suspension guy the other day and he mensioned that the inspectors won't pass poor quality coilovers like Pedders ones so I don't know.....you could just try your luck raising the car with them but because you got defected for being too low, chances are they'll look closely at the suspension in which case you might need standard struts and springs to pass. By law, the lowest part of the car (it's usually the exhaust) has to be at least 100mm off the ground.
If you have standard parts, you're probly better off putting them back on the car. It's a pain in the ass but gives the inspectors less things to pick on. If you want stuff engineered, I recommend Ray Spence at Canberra Motor works in Mitchell.
Hope I was some help.
Cheers
J