I think it is called Hypermax Performar. It lower collar can be adjustable. Colour are Titanium and yellow. I have just installed it. If you ask me b4 CNY I think I might let it go to you.
Just wanna open this discussion abotu who is the best mechanic for RE cars in town.... So all RX7 owner hv better idea where and which mechanic to go for when the car is sick. Is better to go for those professional...