S58 Port Injection Kits

Shop BMW S58 port injection kits and the supporting hardware for supplemental fueling at Colorado N5X. Precision Raceworks offers a kit that works with the stock intake manifold, including the listed G80 M3 and G82 M4 applications.

Choose your S58 port injection setup

The Precision Raceworks S58 port injection kit is available with 750cc injectors, 950cc injectors or no injectors. The no-injector option lets you supply your own compatible injectors; it does not include them. Review the selected variant and included components before ordering.

Port injection adds a separate set of injectors to supplement the engine's direct injection. Plan the kit, injector controller, wiring and calibration together with your tuner. An injector controller is required; buying a fuel pump alone does not add port injection.

Controller wiring and fuel supply

For a ReFlex Plus installation, check the S58/B58 install harness and the mounting cradle for your chassis. A mounting cradle holds the controller; it is not the controller itself. See our MOTIV ReFlex controllers and accessories for related hardware.

Compare S58 fuel pumps and auxiliary fuel systems when planning the fuel supply. A hybrid primary pump and a dedicated auxiliary fuel system serve different layouts. Match the lines, filter, regulator and pump capacity to the selected system, fuel blend and tune.

Browse all S58 performance parts or Precision Raceworks parts. Confirm engine, chassis and model-year fitment on each product page.