i am a bit like that. got all the stock stuff i have changed in case i want to return car to stock etc. i could do with selling some of it so i can buy more shiny stuff  like alloys the GF wont let me have. although her driving. she used to drive ok but now she keep driving to close to curb and cliping them.
Mate it does not belong to a real car, it belong to a remote control Nitro car, i have one of those my self, and its just to filter the air which goes into the engine, does not produce any noise, but they damn look good. i will have it if your not really using it or i can sell you my R/C car fora resonable offer.
Dammit, my secret's out!! I've only got a toy Golf... sob! 
HuDSoN, as you can see the two parts separate if you get an induction kit anyway. You should be able to stop the hole & connect the purty purple bit to the pipe - this'll get air in that way (I think), meaning more air into the airbox (i think).
Disclaimer: I don't know about these things, I'm just guessing 
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