I've added some comments & questions in Bold.
Body wise
4. OEM carbon fiber hood -
I assume you mean OEM-style CF hood. Honda didnt make CF hoods.
5. OEM side mirrors with turn signals -
Do you mean youre going to modify your OEM mirrors & adda sidemarker?
8. Spec d Smoke LED taillights -
Have you verified they light up deep red or cheap-looking light red almost pink?
Mechanical
1. Injen Cold air intake system black -
this is useless on any non-heavily internally modified engine.
5. Coilover system from megan -
you'd be better off with Tein coilovers or Ground Controls with Konis.
Interior
2. Digi Navi 7" touch screen head unit -
What brand?
3. Legacy Two subs -
not a quality brand. you can price hunt for better brand equipment
4. Legacy amp -
not a quality brand. you can price hunt for better brand equipment
8. Custom painted interior -
Please elaborate. I'm inclined to fear you may rice it up.
Also, what brand of speakers do you plan to use or are using?
18x8.5? That is way too much of an over kill. OEM side mirrors with turn signals? Good luck on the build..but..I'd search around to get a better idea of how you want your car to look like because from the list of things you want to do, it seems like you're just putting all these "cool" parts on it and will soon be called "rice" by many.
I'd be inclined to agree with 2slo4u depending on your end result, the answer to some of my aforementioned questions, and the potential use of parts you listed that are below. Its illogical to spend around $4000 on a K20A-R engine then skimp on audio & other cheap mods.
Body wise
7. Spec d R8 smoke headlights
- ricey for my taste
8. Spec d Smoke LED taillights
- ricey for my taste
Mechanical
1. Injen Cold air intake system black
- ricey since its useless
5. Coilover system from megan
- semi-ricey since its not a great brand
Interior
3. Legacy Two subs
- semi-ricey since its not a great brand
4. Legacy amp
- semi-ricey since its not a great brand
5. New gauge faces
- ricey
6. White gauge brezel
- ricey
8. Custom painted interior
- ricey if overdone or if an ugly loud color is used
9. Broadway Rear View Mirror
- ricey for my taste