if u want open port then get CAI to it, or get the BMC style one. I saw that shop next to Tsui Hwa Lou Restaurant (GAB dealer) got sell. Not BMC but replica one, at least it sucking air from outside.
Becareful nowadays lots of police around looking for kopi. LAst weekend around 2am, i kena police block in front of Lim Hua Shan temple there. Racing with frens suddenly got road block after the conering. damn. luckily not much prolem, the cop just said he lapar...WTF...thats not my pro...