Making Real Power With a Turbo Upgrade N55
If you're looking to squeeze more life out of your BMW, a turbo upgrade n55 is basically the rite of passage for anyone chasing real power. Let's be honest for a second: the stock N55 turbo is great for zipping around town and having a bit of low-end torque, but it absolutely falls on its face once you get past 5,000 RPM. It feels like the car is gasping for air just when things should be getting exciting. That's because the factory unit is tiny, designed more for fuel efficiency and immediate response than for high-end horsepower. ...