This is a new Greddy piggy back performance, laptop programmable ECU for sale.
You can see some info here about it
I bought it from another person who did not use it as well.
It sells for $520 plus taxes, I am asking $ 300
You will need to invest in the special USB cable and the tuning software tool which is sold separately.
SPEED AND POWER IS NOTHING WITHOUT CONTROL,
THANK HITLER, BMW HAS ALL THREE