all good, started this morning and again this afternoon, spent all afternoon cleaning and polishing it, wheels, arches the lot. Took it to petrol station stuck a full tank of VPower in, went down motorway for a blast, no doubt about it clearly faster and sharper than before, only have to lightly touch the throttle and immediate pick up so sharp and rapid, seems to be idling bit higher and burbling even more and bit louder. Even just trickling along in slow traffic and tweeking the throttle and distancing the tailgaters with rapid forward motion and a few tunes on let off.
Everything must be helping, new battery, new throttle body, second hand engine management box, maybe that is just a stronger unit, smiling even more than the day I collected the MR200 update, so quick, making some nice tunes, so happy.
Think Mountune chopped off the end of my cold air feed, it was really black and looks like it's routing interferes with where the engine box holder is mounted, so probably undid it, fitted the box back and re-routed the feed, actually now falls some way short of the front grill, I've got under there today with some zip ties and secured it a bit more directly towards the air flow.

Every journey now going to a delight.