Also if you already have expensive tuned chip in your DME ecu. With the eprom programmer/reader, you can read that chip, save the file, it will be in 32kb size on our cars 88-91, then you burn that file into one of the new flash chips, and you put that new flash chip in your ecu, and you sell the expensive tune chip. So basicly chip tuning hardware becomes free. Then you make your own chip tune. No need to spend money on expensive tunes, they are not that good anyway.
If you don't have 173 ecu don't worry. You can use 173 tune in any of the ecus ending in 380, 525, 524, digits.
If you don't have 173 ecu don't worry. You can use 173 tune in any of the ecus ending in 380, 525, 524, digits.
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