I own a Mazda 323 Astina i live in QLD and have my red P plates what can i

Digdog

New member
legally do to it performance wise? its a 1996 model it has extractors and everythign else is stock.
Stereo is good 2 6'7 in the front and two huge speakerss in the back which make the car vibrate on low :) but what can i do to it legally without getting in trouble to the engine? here is a picture of it
 
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