This one
http://www.ebay.com.au/itm/Mini-Auto-Ca ... 2c70a8f9f9
But those OBDLink units look nice
"My JDM twin scroll doesn't have OBD2 compliance" It should be easy enough to buy an inexpensive OBDII BT adapter to test though...
Does it even matter? The OBDII still works, or Defi etc wouldnt make OBDII gauges etc etc.