thank you all, just an update, full service and swirl flaps off. MPG mixed driving town and about 3 miles on dual carriage way and 12 in town , computer says 33.4mpg and averaging 17.6 mph , she gets a blast of 30 miles each way on motorway shows 44.5 ish, no smoke . i will take out egr fully and exhaust thing mdf ?, does not seem to roar away but is ok for 2.5 diesel i suppose, i was lucky with swirl flaps slight cracking ready to break off, i was told not to remap as gearbox would soon go not built for more than 400 nm, thank you all iwill repost new year when rest is done