The aFe stage 2 intake for the BMW E60 545i/550i replaces the restrictive factory air box which allows for an increased air flow meaning more horsepower. Another feature of the intake is the 16 gauge powder coated steel heat shield. A heat shield makes sure that the intake doesn't use the hot air around your engine and only allows the intake to receive cooler air, which adds more power. Not only does power increase, but many have observed an increase in MPG. You should expect a peak gain of 12 horsepower and 10 Ft./Lbs of torque. The intake not only add performance to the car, but it'll also sound great!
Last edited by ModBargains.com; 09-22-2012 at 04:27 PM.