Hi Bob,
I'll definitely put you down as first for the Steve Wong chip. Are you comfortable just buying the chip, or do you want to check in your DME first? If you get the part # from the DME case, you could probably find out whether it's 24 or not. Steve Wong could probably tell you, or you could just look on his site (
911CHIPS - Performance Chip Tuning for the Porsche 911). Be careful though, someone may have changed out the DME at some point in the car's career unless you bought it new...
ianc