4 screws in total. Need to find those bodykit shop to fix it for you. You have any existing spoiler? I dunno whether the Ori spoiler fittings is suitable for this spoiler or not, coz my car didnt comes with the Ori spoiler.
I'm using Motul 4100 for my RX-8, and did an oil change the other day. Used my opened bottle of 3L, then wanted to buy another at the workshop, they dont have it in stock. I'm having quite a problem...