I run it on OPTIMAX most of the time, fitting is simple if it downloads properly,
1,Plug it into your OBD socket
2,Follow about 4 simple instructions
3, You need a Laptop for this bit, insert cdrom into Laptop,plug Bluefin into Laptop with usb connector,pree download.
Your cars details are sent to Superchips to be stored,you then get a text and email almost immediately saying your download is ready.
4, Plug the Bluefin back into the Laptop and download(takes about 30 seconds).
5,Plug Bluefin into car and download(takes about 30 seconds) Done.
What happened with mine was, I downloaded new map from Superchips which took ages, but it said download complete.
I then spent 2 hours in cold trying to install with no look.
When I fhoned Superchips Day after, they said download was interupted, they resent download which took about 30 seconds to load onto Bluefin, job done.