FierceKrypton Cheap blacked out Build

Soooo, just bought a pro5 last week. Fairly happy with it and enjoying taking pride in my vehicle for the first time, my last car was beat to crap. Anyways I have a long list of things I am tempted to get and wanted to know yalls advice concerning them cause I have very little experience. Any tips as far as what to expect if I buy these items would help.

As far as my goal, to have a blacked out pro5 with red accents that is a blast to drive. intend to do two vinyl red strips above driver side front wheel well like Ive seen on chargers. red antenna. red carbon fiber windshield wipers. and black out my rear tail lights.

I have a CEL on and autozone said I need 02 censors, will this work well?
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I think this would have the biggest impact visually for me, I hate how everyone can so easily see whats in my hatch and the sun beats in pretty intensely while driving too, how hard would this to be to instal? good price?
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I was wondering what the best way to increase engine performance for under 50 bucks would be, dont expect insane results but this seems promising? is it a waste of money?
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Soooooo my fan blower makes an insane amount of noise, I took apart the glove box area and got the fan off and cleaned it of a lot of debris but once I put it all back and tried it out it was still really loud.... sounds like its off center or like something is touching really annoying.... thoughts?
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This is prob last on my list but I do think it would be cool to have nice headlights, tips?
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pics of build so far

Power chips don't work, you're not gonna get much engine gains without a turbo... And that rear hatch tint most likely won't be cut accurately and you're gonna get bubbles, I would let a pro do it.

stay away from all those ebay parts...... 95% of the stuff that you posted is garbage.

-o2 sensors get oem mazda or something around that same quality.
- Window tint , go to a shop and get it done right
- Ecu chips , waste of money. You wont see any major gains on a N/A protege unless you build the fwaking engine and that gets expensive real fast
- fan blower might be ok
- STAY AWAY from those plug and play hid kits unless you want cheap bulbs and ballasts plus you'll be blinding everyone in front of you. That s*** is gay... if you want true hid go search on how to do a projector retrofit , http://www.theretrofitsource.com/ <----awesome guys!

Mk thx for advice. I'll steer clear.