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AC Schnitzer

BMW G20 G21 320d B47 Stage 1 Tuning Box AC Schnitzer 121410420-01-36

BMW G20 G21 320d B47 Stage 1 Tuning Box AC Schnitzer 121410420-01-36

£4,256.75 GBP
£4,256.75 GBP £4,256.75 GBP
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For the B47-powered G20/G21 320d (2018+), this AC Schnitzer tuning box delivers a clean, reversible Stage 1 gain: +35 bhp, +70 Nm - focused on mid-range torque for fast-road overtaking and relaxed motorway cruising.

  • Chassis-specific: Designed for G20/G21 only - not compatible with F30, F31 or pre-2018 models
  • Engine-coded: B47D20 only - no N47, no B48, no petrol variants
  • No remap, no coding: Plug-and-play via OBD2; retains factory ECU software and service intervals
  • Track-day ready: Adjustable map switch (Eco/Normal/Sport); stable under sustained load
  • Daily-driver friendly: No DPF or AdBlue interference; no limp mode triggers on stock hardware
  • Search terms it answers: bmw g20 320d tuning box, b47 stage 1, g21 320d fast road, bmw diesel piggyback, ac schnitzer 121410420-01-36
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