Hi, thanks for the feedback.
I've used Jetex previously and they were great, just not heard a lot of users with edition 30s, least of all those with maps.
I did have a chat with Milltek yesterday who acknowledged that Jetex probably give better peak figures but they trade off (in Milltek's opinion) is the torque increase you dont gain lower down the range. Somewhat of an ambiguous statement as they also told me they haven't tested either system back to back.