^^^ total agree with danb above and have previously had experience with this when tuning the ford rs's something happend with a Friends motor so he took it somewhere closer for an inspection and bam had a laundry list of so called faults and a nice quote of how much it would cost to fix it (there way) . Tuning companies are like all other companies they are competition with each other in one way or another. Just hope u get the boxy sorted mate