Right I have heard alsorts of stuff about GEms and mostly its all good but a few questions I thought maybe A tuner or a Owner with GEMS fitted could answer.

1) I have been told that GEMS isnt as refined as other units?
As its a motorsport Unit rather than a road unit

2) Tickover on cold can be quite high.

3) Some have niggling problems.

Are these right or have you ahd one fitted with any probs or are they fantastic. Am I worrying for nothing?