Wow its weird to see something like this.. i feel kinda like a net celeb. Hello guys my name on WheelsJamaica.com is Ralliart4 and i am a moderator in the nissan section and thank you for the refference to the site.
Yes it is the SARD R2D2 and it took me a little while and a couple hours of net searching and best motoring/ hot version to get it confirmed. You can get the wavering sound by really cranking it down if you have a stock turbo but i have owned 4 or 5 R2D2's why just because they sound so dang good.. i have sold 3 of them to complete strangers at parking lots where the locals hnag out just by driving in.
I have run this BOV on a stock redtop T25, a s14 T28, a PowerEnterprise 1420 and now on my new car/project with a topmount T3/T4 and after several trial runs and discussions with other R2D2 owners all over the world this is what makes it so great ..... IT GETS LOUDER THE BIGGER TURBO YOU HAVE!! *shocked* It seems that this was designed to work on big turbo cars but still have the street manners and quick response of a smaller application.
Honestly i will never give up on my R2D2.