If you ask anyone who knows anything about shocks they will tell you GAZ are a crude design with a bypass valve setup. Whenever I mention them to anyone with any racing pedigree they just laugh. Most of the good reviews come from people who dont know better i think.
MSD's reputation sounds alright but I wont go there because the guy on the end of the phone was somewhat unhelpfull and I really didnt like his attitude. Whislt the live remap aspect sounds great, and im sure there very good at this, when asked about fitting larger injectors or a 2.4l TB he just didnt have a scooby doo. They can only tune the car as far as the superchips or whatever make of softwear there using allows them to and thats it. They didnt want to know or probably just didnt know, about altering map sensor tables like TMS managed to do to make the injectors work. So yes, for the money they charge and the reputation they have im sure you would get an OK remap, but from the way the guy spoke to me, dont ask for anything more.