Software tuning for 986 w/996 engine

[Bigsmoothlee]

As the title suggests, this is a grey area with a few uncertains. My car is a 2000 with a 2000 3.4l engine, and I've been running with a stock 2.7 tune for a few years now.

I've contacted a few vendors that support Porsche tuning, like Pedro's garage, APR, and Revo... And they seem to not want any part of this project. Someone suggested that uploading a 996 tune into my 986 ecu (part number 996.918.605.00) would totally disable the conv top function.

I don't have cats or the secondary air system, so do I need to take my car to someone with a PIWIS and do a ROW tune first?

Thanks in advance for helping me clear this up, and I'm sure many people doing the conversion will appreciate this thread.