STG3 Tuning Injector Scaling Model-M135i N55 F20 turn off the ignition

turn off the ignition

we'll do as many runs as you want or need

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We wanted to set about creating a custom tune that offers both everyday drivability together with a more involving and enjoyable experience when pushing on

STG 1 Power increased to 350HP and 550NM of torque

STG3 Tuning Injector Scaling Model-M135i N55 F20 turn off the ignitionIf you're already STG3 tuned with us and you've just upgraded your injectors then this is the product to buy! We can either keep your tuning the same and scale your new injectors in, or if you'd like some changes let us know and we'll do it at the same time. All instructions are supplied via email after purchase!