N63BMW N63 OEM Twin Turbo T51R Modification (20082018) Made to Order Standard Lead Time: 23 Weeks OEM twin turbocharger T51R modification for BMW N63 equipped vehicles (2008Present). Model Compatibility Early Model: 20082018 Supported Late Model: 2019Present Currently not supported Late model turbochargers require welding a new 2. 5 inlet pipe in place of the factory spring clip inlet design. Custom intake piping would also be required, so this