You might also check out DynoSpot Racing in San Jose. ( www.dynospotracing.com/parts.html#giac ) They are the local dealer for GIAC which is a pretty well respected ECU software company. Some years ago I saw them work on a 986 S. They were in direct contact with Garret at GIAC, getting custom software for the customer's mods. It was a pretty impressive effort, but ultimately unsuccessful because of a fundamentally flawed aftermarket air intake that had been installed by another shop.