Quote:
Originally Posted by jjdcct
I installed the racechip GTS black on my 2021 and have it dialed up to 7. I feel absolutely no power difference. I was also told that the 2021 has changed their encryption technology and no one has cracked the code on them as of yet. I just came out of of 18’ e63s and that car felt much quicker. I wish I would have done my homework a little more thoroughly. With the change in to the dash with the omission of the traditional round gauges and the inability to tune, I would have kept the MB.
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Hi,
the encryption part applies to flash tunes, not piggybacks (unless this is a brand new thing that I am not aware of)
Your Racechip might be defective or just weak, I recommend trying the Jb4 instead (We offer it with a 30-day money-back guarantee in case you are not happy with the power output)