I had 4 MAF meter's die within a six month period last year in my MY00 WRX. I had the standard subaru paper filter, no intake mods and nobody could figure out why they were failing. In the end I had an Autronic installed and tuned and haven't looked back.

Also I would like to know where you can get an Autronic installed for $2k? The retail price on a PNP SMC is $2400 from memory, then the cost of installation and tuning. I would hate to think of the quality of the workmanship and tune if they are doing it at that price.

Also when comparing a PowerFC to an Autronic (not sure about the link) you have to remember that the Autronic comes with full closed loop boost control. To get the level of control of boost with the PowerFC you have to add an AVC-r to the install as well. IMO this is a big plus and can really bring the two closer together on spec, and price. Then the decision is easy. Not to mention the data logging capabilities of the Autronic, Autotune and closed loop fueling. Autotune will take the quality of the tune out of the hands of the tuner, in most respects and generally allow a better quality tune. Whereas the PowerFC is batch tuned, and if not enough time is spent on all of the load sites, then poor driveability is usually the result even if you have a good power figure.

In reference to the original question I would suggest something like a Unichip or ECUtek 3 (as they are dyno tuned) for the mods that were listed. Although it really depends on what you are going to do with the car. Are they going to be the only mods that you perform? If you decide to go with larger injectors and a larger turbo (very likely) then the money that you have already spent on the 'cheaper' ECU's will probably be wasted as they won't be able to run the new equipment effectively.