I'm selling a used JB+ quick install tuner for the B46/48/58 engines. I bought it brand new in January of 2020. I had it on my G20 330i for two months and it definitely works. There is a noticeable increase in power that translates onto the road. I have a few pics of the unit below and everything is in perfect working condition.
The reason I'm selling it is because I've upgraded to a JB4 and it won't work on our F25 X3. So I have no use for it now.
More details about the juice box can be found
here.
My first impressions with the JB+ can be found
here.
$150 for a two month old unit seems like a fair price to me. Payment will be accepted only by PayPal invoice unless you're coming to pick it up in person.