Please note that these 145 mm connecting rods are designed to fit BMW N54 engines

your N55 engine will operate efficiently

87mm Stroke

Radium Engineering uses one of the largest filtration elements in the industry

if you're not already running a flex fuel kit on your vehicle and plan on running with ethanol (E85)

Precision Turbo Inlet Screen Inlet Screen Size:4" for S & H Covers Please note that these 145Introducing the Precision Turbo approved one piece turbo screen, engineered to enhance airflow while offering superior protection for your turbocharger. With a 79% open area, it allows your turbo to breathe, though with a minor impact on performance. Specifically designed for street driving, this screen strikes the perfect balance between protection and airflow. Its also compatible with velocity stacks. Available in three sizes: 4" diameter for S & H