Well, it's been a good day.
I fudged up the calipers that Hilla had sprayed. Although I think the paint I bought was wrong as it hadn't cured (it's been a week). I lacquered the calipers but being the impatient sod I am, got the decals on too early and the lacquer had reacted with the paint. Back to square 1 on that, (sorry bud).
On a better note, the Blueflame system is on, without removing the sub frame. It's just sooting up now and sounds fantastic. Not overly loud on tickover, not too loud when on the move unless you hoof it and as soon as the boost comes on, the note changes again. Very happy with it, thanks to Damien @ DPM for supplying it so quickly.
My only issue is... since fitting it I've blown 2 boost hoses off already
will be replacing all the clips / clamps now to prevent anymore disappearing