Welcome
With OBD tuner it is possible to turn the Z22SE Engine Control Unit (ECU) into a free programmable ECU. This way you can calibrate your ECU to suite your engine modifications and get the maximum gain from all the modifications possible. You get the benefits of a free programmable ECU without even modifying the wiring loom or sensors.
At this time the software is not widely available, but this situation will change in the near future. A number of cars in the Netherlands are using this software to see if there are any issues with all the engine configurations out there.
The Z22SE engine is a very robust engine that can be turned into a much sportier engine, this way it will suit the VX220/Opel Speedster better and you will get even more driving fun.