The N55 xDrive turbo hardware kit consists of the required additional components when upgrading to the Dinan big turbocharger on an xDrive vehicle. These components are replaced when installing a turbocharger per BMW recommended procedure. 
$399.99
$179.99
$159.99
$1,049.99
$139.99
$219.99
$199.99
$199.99
$132.00