As far as i'm aware the ECU has to be taken out and prepared to accept the map via the bluefin. In that case you'd be as well just getting it mapped. As maybe posted on another post the bluefin has a generic map. Have had maps in the past and when or if you want it put back to standard before you trade in a small cost of £50 is applied. Saying that i've sent them back into the dealers with the map in it. The standard paperwork from the dealer asks you if you had any major bumps, nothing about mapping.
On another point when VW says 170ps or 168bhp. If your car was dyno'd it may have less or more bhp. Think ave read this on REVOs web site.
