ASNU Injectors (S54B32)


ASNU high performance injectors are a drop-in replacement for the original injectors on the S54B32, as found in the E46 M3, late Z3 M and Z4 M.

ASNU has over 25 years of experience with injectors, and are used all over the world in aftermarket and motorsport applications. ASNU injectors are purpose-designed and built with the ideal spray pattern to match the flow required. All ASNU Performance Injectors have a multi-hole orifice cap, cut using the latest laser technology for greater accuracy and repeatability. Using this technology allows it to produce injectors with specific spray patterns and flow rates to meet the customers’ exact requirements. The seven hole orifice cap that it uses in most of its injectors in the lower end of the range (300-1000cc) and offer an ideal combination of fuel flow, fuel distribution and fuel atomisation. The seven holes produce smaller fuel droplets that will burn more efficiently, giving more performance and more laps for less fuel. This is a critical factor and should be considered when comparing ASNU injectors to any other Performance injectors.



300cc – 10 degree

350cc – 10 degree

400cc – 20 degree

450cc – 20 degree

500cc – 20 degree

550cc – 20 degree

600cc – 20 degree

650cc – 20 degree

700cc – 20 degree

750cc – 30 degree

800cc – 30 degree

850cc – 30 degree

900cc – 30 degree

950cc – 30 degree

1000cc – 30 degree

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