How could a computer give you OEM fueling strategies,  OEM quality,  flex fuel control, traction control,  individual cylinder knock control, the best boost control that i have ever used,  launch control,  4 stage nitrous control, perfect idle stability, perfect start up,  fault management, fuel pressure compensation,  complete automatic transmission control etc and keep it a very affordable price.  I have now sold over 200 of these systems with ZERO failures!!  No other system gives you OEM drivability like the ProEFI.  There is nothing that you cannot do with a ProEFI!