Although I have nothing against go-tech you are very limited by professional mappers, I am aware of only two. Jamsport and Si-Tech
As such should you require mapping and not wish to do it yourself, you have limited choice regarding who you can use.

I use cossie management, it can be mapped by NMS, MSD, Amhed, EA and many others, and this is without mentioning the fact that the fastest escorts in the UK run this management. It is well proven, its good enough for a big power cossies so a little cvh escort is no problem. It has great second hand value, my ECU still sells for the same kind of money that I paid for it