Description
2023 BMW X3M ECU tuning.
Published factory figures: 473 HP, 442 TQ.
Stage 1: 600 HP, 590 TQ, Stock exhaust.
Stage 2: 630 HP, 620 TQ, Downpipes Required.
DME retains the original ECU calibration for returning the vehicle to stock. The calibration changes throttle response and torque management.
Listed functions: octane-specific calibration; downpipe (off-road use only); speed-limiter changes; cold-start control; burble adjustment where available.
Mail the ECU for programming. Instructions are emailed after checkout; include the completed ECU Information form downloadable from the homepage.
The buyer pays shipping in both directions; the return charge is added at checkout.
The source advertises support for 2021+ BMWs built from 06/2020.
Advertised unlock turnaround: 2 business days.
The advertised package includes unlocking, tuning and shipping.
Disable iDrive automatic updates: Car > Settings > General Settings > Data Privacy > No Service. Decline app updates; Updates can relock the ECU and erase the tune/unlock.
Source conflicts: buyer-paid overnight shipping and bundled unlock/tune/shipping both appear. Source description has duplicated/broken text; technical facts retained once.
