Yes you are correct but I ordered a cable to use PCtune and its lost in space, so I have fitted them tonight and had a quick test ride, great result
The only thing that has changed is the rate of acceleration and the noise. big difference, I will up the Gipro atre to the top fuel setting to compensate for the fuel ratio, but it may be lean at idle. As soon as I get the cable I will set the secondaries and tune for TORs, hopefully I will understand the PCtune software.
Thanks for the advise