[BRG]

http://videos.streetfire.net/Player.aspx?fileid=FB2F677D-F676-4EAE-8FCD-61A2558E1245&t=top&kw=10&p=1

I have a feeling its the HKS Racing type 2, just want to make sure though.

 

[robertsmb]

kinda sounds like the blitz blow off to me. ive not heard it on a supra, but on the WRX it makes that whistle/cutting air noise.

 

[Jeeves]

HKS Racing Type II.