tbh i wouldnt trust a dealer to do anything, even an oil change. experiances i;ve had with them have been pretty bad, to point of having to get work done a second time to put right what they !Removed! up. Bear in mind its only a limited numbers i;ve had dealings with ad some will prob be better than others.
if you go indy there are a fair few around the area.
just stay clear of a guy called tony hough based over in rotherham (not sure what he's currently trading under)
Don't really know anyone down your way im afraid, its worth traveling for a decent job though. Scoobyclinic up at chesterfield do all my work including building and mapping my engine.
sounds like its hitting fuel cut, check for leaks in the pipes. if youd change the pipework i;d sugest restrictor pill, but if thats not changed then must be somethign else
afraid its not as simple as getting it programed out, cos they get water into them (which is why they fail) they can lock witht he butterflies in the wrong position and stuff up the afr. you need to blank of the system, remove the butterflies and then map it out.
afraid dont know much about them other than fitting isnt great.
have you trued googling japspeed front mount engine bay? see if theres ome images to show what other folks have dont
what milage is it on? if your planning to keep the car long term i;d bite the bullet and get it fulled rebuilt, no worries abotu what might happen in the future then
2.5 are renowned for dropping headgaskets.
£1700 sounds very cheap for a headgasket on a 2.5. You need to full strip and replace the crank bearings as they have a tendancy to be damaged when the HG goes as they get pinched.
you could try some of the aftermarkt wheel suppliers like wheelbase etc
looks like cheapest package is about £900, which for wheels and tyres isnt too bad (winter tyres) and wheels arnt awfull lol