This has been already posted here about 2 months ago.
You CAN do 180 in Ed30... by the speedo.
There is quite an error in the reading of the speedo, I personally done 270kmh (or closeby, did not look too close
) by the speedo, when the GPS showed 230.
With BLuefin, or any other chip for that matter, you won't get a significant increase in top speed, maybe 10-15kmh. The 6th gear is not long enough to let this car reach higher speeds.