For Spoiler, I chose the factory GTR one.
I had a copy one which is double wing (V-spec)
but it will be just shaking up and down on the motorway.
Caught a lot of laughing at the back from other cars.

The different between copy one and the GTR one is...
1) GTR one really "plug and play"
2) GTR one has the LED
3) GTR one won't be shaking like the copy one.
4) GTR one has 4 angles for adjusting downforce (IT REALLY WORKS).

OK, I know it's hard to get GTR spoiler in NZ
if u r planning to get the copy one, a few points to take care...
1) If ur one really shaking, try doing a alu stand in the middle of the spoiler, that's what I was going to do.
2) U can make the LED to the spoiler, but it will cost u $$$
3) If the pannel beater installs for you, REMEMBER to remind him not to do any stupid holes in the center on the boot.
(who knows when u will put back ur original wing for drag racing?