hi 99gti,
this is a great subject you have picked.as its such a volatile subject and most people cant just discuss it logically I will only post publically the different names of chips.my suggestion to you is visit their websites and research yourself.Its also best to take a test drive in a chipped car that matches your model.take all printed gains with a grain of salt.
http://www.oettinger.com.au/
http://www.mtm-online.de/en/ (which is what I have)
http://www.goapr.com.au/
http://www.giacusa.com/
http://www.custom-code.co.uk/
and obviously there is going standalone and getting it programmed.
good luck with your search!!
please keep this discussion mature guys.
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