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.
Hey guys, anyone know how to DIY replacing the fiber inside the exhaust muffler? Like when the exhaust muffler fiber is almost finished or finished burned out, the exhaust wil become very very noisy...so in order to...