SALE PENDING
Got this JB4 from Burger for my 750Li. Its the BETA version. I'm selling the car for an F34, so I'll never get to install it. Its brand new, never been installed on anything. Works on the 5, 6 and 7 series, don't see any reason why it wouldn't work on the X5 and X6 since the motor is identical. You can check with Burger if you're interested.
Makes a RIDICULOUS extra 56hp and 73ft/lbs at the wheels on a safe tune, and 71hp, 94ft/lbs on an aggressive tune! Its not quite M power, but its much closer.