im in leeds
Google Pendle performance,he's over by Shipley.
I had my Caddy van done,went from 104 to 144ps and its the best £260 I've spent on that van.
Pulls brilliantly and smooth through every gear,and there's at least another 10 people from the caddy forum that's had it done by him and they all say the same.Cant recommend him enough.
But as said,stay away from cheapo's and the mobile tuners :)