Computer Question

what is the differance in the computers? For example, my computer just went south and I had to replace it. I did have an "A9M" and replaced it with an "A9L". What is the differance between them? The car seems to perform better now that I have replaced the computer. Just curious.
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I never looked at the A9M settings, so I can't say how the 2 are different.

The best way to find out would be to download the tweecer software from

If you download the most recent update there is a comparison feature that will allow side by side comparison of any 2 calibrations.

I may do it later if I have time :shrug:

I would imagine the biggest difference is in the ignition timing advance.