Billet Performance Products 14mm 3/4 to Full Length Fuel Injector Adapter converts compatible Bosch EV14 3/4-length injectors into a full-length configuration for fuel rails and manifolds that need the taller injector body style.This is a small but important fuel system part when you are mixing injector types, aftermarket rails and EFI manifolds on a performance build. It helps correct injector height, supports proper seating, and makes it easier to use popular Bosch EV14 injectors in setups designed around a full-length injector package.It suits workshop EFI conversions, custom fuel rail installs and injector swaps where packaging needs to stay clean and leak-free. If you are building a custom 14mm top-feed setup, it also pairs naturally with billet rails and other EFI hardware in a serious fuel system package.Features Function: Converts 3/4-length injectors to full length Injector fitment: 14mm style adapter Injector compatibility: Bosch EV14 550cc, 725cc and 1000cc 3/4-length injectors Finish: Black anodised Included: Injector clip for secure, leak-free assembly Use area: EFI fuel rail and manifold injector height correction Supplied as: Single adapter Typical Applications Custom EFI fuel system upgrades Using Bosch EV14 injectors in rails designed for full-length injectors Aftermarket fuel rail conversions on street, drag or track builds Engine swaps where injector length does not match the rail package Workshop fuel system assembly and service Fitment Notes Designed around 14mm injector fitment and compatible 3/4-length Bosch EV14 injectors Always confirm injector body length, O-ring sizing and rail/manifold dimensions before ordering This adapter changes injector height, not injector flow rate or electrical compatibility Best suited to custom EFI setups where injector length correction is required