Hi guys
I got a freebie from my dad. We bought this car 7yrs ago. Think was just imported from Japan. We (my dad) didnt really know much about cars and a friend was importing it so we bought. Well now its done so cant do much. in 7 yrs we learnt to move on. I have had this car for almost 4 yrs and since i am still a uni student and only part time job cant upgrade to new car and dont want to as i am in love with her.

Anyway its a AE91. Dont think it was brought to AU as only AE90 and AE92 can be found here. Its a EFI yes an EFI 1.5 litre engine. Just incase there a few of u who dont trust me here are a few pics.
Engine Number
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Engine Plate
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Engine Bay
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Front Grill
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Question 1: What is a pod filter i have heard off. It increases air flow right? Does it increase fuel consumption? Would the sound be illegal in terms of decibels? I would love to have that sound effect in my AE91,

Question 2:My car has 13" wheels and i am sick of it scratching at the bottom when i go over humps etc. Is there a way i can get 14 or 15" wheels. What would i be looking at?

Question 3:Have a look at this speaker rack. Is there a way i would be able to open this and replace the speakers. I have a Sony Headunit with 4x30watt speakers. I have got 6" 3way 200watt speakers i won. Can u add these speakers without needing an amp?
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Question 4: I have a nice leather gear knob. I would love to put it in but i cant jjust unscrew the old one. Any ideas wat needs to be done? Is it legal to have a gear know that doesnt show where 1st and reverse etc gears are. Sorry may seem dumb but need clarification as a friend was asked to remove it for RWC in melb

Question 5: Anything else i can do to make it more enjoyable.

thanks for all your help and sorry for loading this with xtra questions.