Another Moonrock wants to come in.. ;)
Yes, the trunk spoiler you want is veilside. The mugen spoiler is fine. Are you gonna do more mods to help out the mugen spoiler if you were gonna keep the spoiler? The sw388 wheels are ok. White regamaster would look better in 17x9. The AEM V2 instake is ok. Just make sure its cold air because the piping is aluminum and aluminum likes to hold heat. K&N FIPK is very popular if your on a budget but want a reliable intake. I personally would do either spoon or j's racing snorkel and spoon or j's racing air filter and dremmel out the wall thats in the stock air box. Use google about the modified stock intake box and you'll see how people do it.

you can see that in this picture, this person cut out the unecessary part of the stock intake that looked like it did not serve a purpose.

in this picture, you can see that the middle intake wall is also cut out to prevent from retriction. make sure you still put the stock intake cover back on. don't leave it open.

here you can see that the inside middle wall is still there and the unecessary section near the intake arm is still there also. will save a lot of money and possibly give you gains.

spoon drop in filter (they also modified the uncessary section out and the middle wall.)

spoon snorkel. j's racing is also identical. only difference is weave.

password jdm snorkel (this has a huge opening coming from the front bumper. 10x larger than spoon and j's but same concept. i dont think it would make a differce.)
use this for reference.
https://www.s2ki.com/s2000/topic/634...intake-thread/
So It's been a while and I made some progress with the car.. Well don't expect it to turn into a Amuse GT but anyway it's better than it's first look 
What's done so far ; Lowering the car via Tein Coilovers, added a oem lip + ezlip to make it look lower, removed the mugen spoiler and added nothing yet, installed innovate wideband and Apex'i VAFC. Skunk2 catback exhaust were installed but it was so f**ing loud and removed them after a day.










What's done so far ; Lowering the car via Tein Coilovers, added a oem lip + ezlip to make it look lower, removed the mugen spoiler and added nothing yet, installed innovate wideband and Apex'i VAFC. Skunk2 catback exhaust were installed but it was so f**ing loud and removed them after a day.












