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BMW Tuning
Before and after power and torque for every BMW Serie 8 engine we tune, measured on our in-house 4WD dyno. Every map is written for your exact car and is fully reversible.
| Engine | Standard | Stage 1 | Stage 2 | Price | |
|---|---|---|---|---|---|
| xDrive 40dDiesel | 320 bhp 680 Nm | 400 bhp+80 800 Nm+120 | — | £449+ gearbox £385 S1 + gearbox £709 › | Book |
| M850iPetrol | 530 bhp 750 Nm | 680 bhp+150 850 Nm+100 | — | £449+ gearbox £385 S1 + gearbox £709 › | Book |
Whichever you pick, the total carries through to checkout — pay in full by card, Apple Pay or Klarna (3 interest-free payments), or secure the slot with a £50 deposit. Figures are typical results for a healthy, standard vehicle on our dyno. Your car’s actual output depends on its condition, fuel quality and any supporting modifications. Prices shown are for Stage 1 custom dyno tuning inc VAT; locked ECUs (most BMW and Audi registered from mid-2020) carry an additional unlocking charge, confirmed when you book.