Effectively none of them are flashable, they all have to be chipped.
The early ones are extremely difficult/impossible to find the physical rom chip they require, as its long discontinued and isnt rewritable. The later ECU's use a much more common rom.
A good tuner doing a custom map on one of these ECU's would use an Emulator in place of the rom, while he got the map nailed down, then he would burn the virtual rom to a real chip and fit it.
I could be when i have had a look to see what i have there on friday. How much are you looking for?You can swap the later harness and ECU in without too much problem, infact i have one here if your interested
Yay i have a later one on a 98 lol.
If you`re chassis number is up to 8DW100 then you have an early one, if its over that then its a late ECU
Saying that looking at a 97 if its 8DV onwards then it goes up to 99..
hhm chassis number is needed to work it out properly.
You can swap the later harness and ECU in without too much problem, infact i have one here if your interested
fair price, i'll give you a shout when ive had a lookI'd like £50 for the ECU and harness.