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I wouldn't say this rom tune is shady or anything. anyone with a eeprom/flash burner and daugtherboard can easily tune their own cars.
the offer seems good and what they offer are the basics of rom tuning (not much advanced). however, from my experience, that daughterboard quality is inferior to many other daughterboards. it doesn't even have moisture protective coat and the circuit board is of cheap materials. cheap prices lack quality in electronic components such as capacitors, resistors, or eeprom/flash chips. you definitely do not want your daughterboard to fry on you when you are road racing.
on the otherhand you can't go wrong with jwt or enthalpy. they've got too much reputation to back them up.
maybe for 150, i can get it and dump the rom and see what they did (i wouldn't be surprised if little or no modifications were done like many rom scams out there). btw even if they install a daughterboard on your 62/E5 you can reverse the effects very easily so no big deal.
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