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Shop E46 M3 Shark Injector

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Standard Performance Software - The car's Sport and DSC functions remain the same as stock but all of the other Shark Injector benefits (more horsepower and torque, smoother engine, quicker throttle response) are added. Choose from stock rev limit or a raised 8100 rpm rev limit AND Choose your minimum octane requirement (91 or 93).



Sport Mode Memory - Even when you turn the ignition off you can keep the Sport mode activated. This is extremely useful if spend all of your time in Sport mode. Now you won't have to repeatedly push the button every time you turn the car on! Available with the 8100 rpm rev limit only.



DSC button controls Sport mode - With this feature you can control how the DSC and Sport mode interact. By pressing the DSC button and turning the system off you will automatically engage Sport mode. And by turning DSC back on, the Sport mode will disengage. This effectively de-activates the Sport button on the console. You'll only have to push one button instead of two! Available with 8100 rpm rev limit only.


For BMW Shark Injector applications and specifications, please see the bottom of this page

BMW E46 M3 Shark Injector
Part Number Trans Revs Production Date

N4MSS54 M/SMG 8100 01-06

Comments: 91 minimum octane


N4S54OCT M/SMG 8100 01-06

Comments: 93 minimum octane


N4S54STL M/SMG 8000 01-06

Comments: 91 minimum octane, 8000 Rev. Limit


N4S54STO M/SMG 8000 01-06

Comments: 93 minimum octane, 8000 Rev. Limit


N4S54DSC M/SMG 8100 01-06

Comments: 91 minimum octane, DSC button controls Sport mode


N4S54DSO M 8100 01-06

Comments: 93 minimum octane, DSC button controls Sport mode


N4S54MEM M/SMG 8100 01-06

Comments: 91 minimum octane, Sport mode memory


N4S54MEO M 8100 01-06

Comments: 93 minimum octane, Sport mode memory, std 6-spd only


I4S54HDR M/SMG 8100 01-06

Comments: 93 minimum octane, Euro Headers/Cats


N4S54KAT M 8100 01-06

Comments: 91 minimum octane, Headers/No Cats, std 6-spd only


N4S54KAO M 8100 01-06

Comments: 93 minimum octane, Headers/No Cats, std 6-spd only


N4S54MT2 M/SMG 8600 01-06

Comments: 93 min oct, headers/no cats, 8600rpm rev limit, race-use only