Megasquirt on the cheap side.......

AEM on the more expensive.
Toyota MR2 Spyder 1993-95 Turbo 30-1121 Available $2,335.60
Toyota MR2 Spyder 1991-92 Turbo 30-1120 Available $2,335.60


Normally I would suggest the MRcontrols stuff....

But heres why I didnt.

The base model SDR that MRcontrols has dosent haev that many options anyway. Its biggest strengths are sequential injection and the fact that all factory options and wiring harness are retained. Its BIGGEST weaknesses in this are that MR-2 stated he dosent want factory wiring since its driving him nuts, why force it to him.

The Hydra nemesis 2 is also a great system with lots of options, but if you buy all the options its priced more than the AEM that has them from the factory in 1 package. I also trust that more dynotuners know AEM than hydra 100:1, AND AEM support, programming, and troubleshooting are TONS better than hydra.

Depending on what is on the car in question mod wise, I'd pick between Megasquirt II , and AEM ems.