Optional Heat Protection Package:

ranging from 3

The original BMW bearings have too little clearance

1mm  Valve Lift  Application  255° Intake / 248° Exhaust   10

5150 AutoSport Pro-Series Turbo Build Kit, BMW N55 M535i Optional Heat Protection Package:The 5150 AutoSport Pro Series Turbo Build Kit: An all inclusive arsenal of internals custom assembled to prepare your BMW N55 engine for high horsepower, turbocharged performance. A Kit for Every Build and Budget There is no one size fits all, which is why we offer several stages of upgrade. Through careful selection and pairing of components, we are able to offer customers a variety of kit options, catering to each build and budget. Options: Level 1