A guy which works at my local BMW dealership offers me a tuning box for my 125i. The box delivers such figures: from 218PS/318Nm to 276PS/400Nm and costs are around 700 euro. He also promises,
that the box will be very easy to remover and will not leave any trace of existence afterwards. And if I will service my car at the place he is working at, I won’t even have to plug it out.
It all sounds good, but I still have some questions which are bugging me:
1. Do you guys think it’s a good idea? Should I do it? I know the risks when it comes to guarantee… but that power is so tempting!
2. If I will install that box, and let’s say after some time I will add new exhaust and air filter, will I need to have new a box? or will those upgrades bring more power without the need of another new software.
Thanks for help!
