Faulty chiptuning and utterly NO CONTACT with them. They've got at least three websites, FB page (Drake Box, the same company, same address) with no option to talk to them. I sent the chiptuning back with tracking mail, still no contact, no replacement, no refund. Stay away from them, even if some of your friends bought it and their chiptuning worked, you may not be that lucky.
Tip for consumers: Don't use it at all, there's a lottery if the chiptuning works or not but if not, you won't get any support, let alone replacement or refund.