Originally Posted by chaz_master
If you're happy with the power then I wouldn't suggest doing anything to it. If reliability is a concern then there's no point opening up more possibilities for it to fail. Things will wear quicker, costing you more money in the long run.
It's down to you but if it's your daily driver that you need to commute to work in and not just a car for fun, then I wouldn't bother personally.
This is my thoughts exactly. I mean I am not drag racing my car, so I don't need to do any tunes to it that will give me 400hp. My biggest concern is keeping the car reliable and running great. I do like the bmw power performance upgrade though, it sounds like it keeps everything stock and just gives more response to the throttle, so that to me sounds like a nice option.