It'* pretty confusing. I know any obd2 they sell are 'modules', and I don't know for sure how they compare, but I don't believe they 'modify' as many parameters.
The best performance seems to be from the 92/93 chips. These are actual 'piggyback' chips that go into the PCM. That'* what I have in mine. There is also some confusion about what models are interchangeable. My thoughts are that the programming for the SE, SLE, and SSE is identical, but I don't know if shiftpoints are the same with different final drive ratios. Or what if Jet only changes the shiftpoints by a PERCENTAGE, rather than an actual value? Alot of this may be proprietary information.
Another member has asked me to contact Jet for information, so I'll try to get as m any questions answered for you guys as I can. The only complaint I have is that I didn't get a cool sticker for my car with my chip.