I had a look at a few sites. Auto-tune in Ballymena can do it. I would take a look at some of the other forums (like Really Mean Sounds)as there will be plenty of feedback on this kind of thing.
Autotune gets my vote, had my 159 remapped and egr/dpf removal done with them about 16 months ago and have had no bother since. Passed mot with no problems and not had a hint of any running issues.
D
Mine isn't doing the MPG's it's supposed to, also not accelerating like it should so something is definitely wrong, will be bringing it to Donnellys in Mallusk when I get a free minute, last time it was up I was told it needed some wiring sorted, which could be the caused of most of my problems I would guess!
Also need to clean out the EGR which looks like fun! Can't wait to get stuck into it.