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BMW M340i Remap
The BMW M340i is a brilliant all-rounder - fast, refined, and practical - and the B58 straight-six responds to ECU remapping in impressive fashion. A Stage 1 remap takes the M340i from 374bhp to beyond 440bhp, adding significantly to the already impressive performance without changing the everyday character of the car. AutoCleanse provides M340i remapping in Devon from our Totnes workshop.
Performance Gains
BMW M340i Engine Options
3.0T B58 374 (G20/G21)
Our Process
Professional ECU Tuning in Devon
Every remap we perform includes a full pre-tune diagnostic check to ensure your BMW is healthy before we start. We don't flash generic files - we use safe, proven calibrations tailored to your engine's specific hardware.
Mobile Remapping Available
We cover the entirety of Devon. We can remap your BMW M340i at your home, workplace, or driveway, providing the same high-quality service as you'd receive in our workshop.
FAQ
BMW M340i Remapping Questions
Transform Your BMW Today.
Book your M340i in for a Stage 1 ECU remap. Choose between a workshop visit or a mobile appointment across Devon.
Safe, tested calibrations for long-term reliability