SDs is a nice, reliable system for the price. If you are unfamiliar with programmable EFI, I definately recommend SDS. It was the first system that I used and was pretty easy to understand for the beginner after a little reading of the manual and changing of the values. I would also recommend doing any major tuning with a wideband and not just a narrow band air/fuel meter. If you order direct from SDS, they will have a base map programmed into the unit to get your car started, then after that it is up to you.