The mid hatch spoiler came about from absolute luck, driving around one night and saw a 323 go by with it on there. Pulled a quick u turn and followed them. Turned out to be some old lady that didnt want it : D Not quite sure if its OEM, probably not, its fiberglass.
Ran it recently, put it was crap, i dont have an lsd yet so traction is a huge issue, rolling off the line slow and letting of the gas to not overboost (waiting on my external wastegate

) I was running 105mpg at finish. im told thats good for mid mid 13s