Not half the price of an SAFC, half the price of the cheapest engine management system.
$300 for the basic GReddy, $350-$380 for the SAFC.
After that is only a little more money to get more power.
Basically, I am $400 and many hours of work into this device.
$400 is not bad at all when you get aiflow control and injector pulse-width control, and probably ignition timing control as well.
As far as the 4 cylinders, YES!!!!!!!!!
It will work just fine for you guys as well.
I think you four cylinder guys are going to have great results because your engines were never tuned "sporty" from the factory. I would like to set one up on a ZETEC and just play with it.
I know the ZETEC responds well to timing changes.
warmonger