Which is better, the mspnp2 or msx3 that you build?
-I want launch control (don't ask why)
-I don't need A/C control
-I want driveablity

Which is easier to install?
Which is more user friendly?

I had a mspnp1 on my 96, and was able to get it running, going down the road, driving etc in a little under an hour. I liked that.

 

The MSpnp2 is going to be loads easier to install. I'd say it's more user friendly too, as there's simply less menu options on the MS2 vs. MS3X. It's also has a base map provided by DIYautotune to get you started, and should be just as fast as the MSPNP1 to get you driving down the road, but more capable.

Your '96 had launch control with the MSPNP1, so will the MSPNP2.

IMO your '92 has no need for the MS3x, unless you wanna run sequential fuel and injector, which the MS2 can only do one. I think.