
Engine · S58
S58
M3 / M4 / M2 / X3 M / X4 M. The current M-engine: competition-grade torque, sustained boost, twin Bosch MG1 ECUs.
Tap your chassis →
Custom BMW ECU and TCU files, hand-built by Samuel.
Bootmod3 · MHD · MG Flasher · xHP.
Spread the cost — 3 interest-free payments withKlarna
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Cars tuned remotely
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Countries shipped to
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First-file turnaround
I never see the cars I calibrate. Customers send the footage, I share it. Swipe through real builds running my files right now, on every continent I ship to.
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America 🇺🇸BMW 540i xDrive · Stage 1-3 + Flame Map
Bootmod3 Stage 1-3 custom maps with big-turbo F&O calibration and flame software.
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Taiwan 🇹🇼BMW 440i · Stage 2 + Flame Map
Stage 2 calibration with flame software, F32 440i, tuned from the UK and driven in Taiwan.
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Palestine 🇵🇸BMW 340i · Stage 2 + Custom Flame Map
F30 340i tuned remotely from the UK and running custom flame maps in Palestine. Stage 2 calibration.
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America 🇺🇸Toyota A90 Supra · Stage 2 + Switchable Flame Mode
Stage 2 calibration with switchable flame mode, activated from the cruise-control button. Tuned from the UK, driven in America.
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Singapore 🇸🇬BMW 335i (N55) · Stage 2 + Flame Map
N55 powered 335i on Bootmod3, Stage 2 calibration with a flame map. Tuned from the UK, driven in Singapore.
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Scotland 🏴BMW M140i · Stage 2+ + Flame Map
M140i dyno-tuned for Haas Power in Scotland, Stage 2+ via Bootmod3 with flame software.
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Remote tuning runs on flash platforms: smartphone or browser apps that read and write your ECU through a small adapter plugged into the OBD port (the same socket a garage uses to read fault codes). I calibrate the file in Manchester, the platform delivers it to your car wherever it is in the world. Here are the four I work with.
Swipe through the platforms

Platform · BM3
Cloud-based BMW tuning. Flash, datalog and switch between maps from your phone, tablet or laptop. The most widely-used platform across modern BMW chassis worldwide.
Read the BM3 guide

Platform · MHD
Smartphone-first BMW tuning app. iOS + Android. The default platform on N54, N55 and B58 builds. MHD+ unlocks advanced features for fully custom remote tuning.
Read the MHD guide

Platform · MG-Flasher
Mobile tuning for the latest Bosch MG1 ECU generation. Covers chassis where BM3 and MHD have gaps, plus advanced custom-code features for serious builds.
Read the MG-Flasher guide

Platform · xHP
Gearbox tuning, not engine. Pairs with any of the ECU platforms above. Faster shifts, raised torque limits, custom launch control on ZF 8HP automatics and DKG.
Read the xHP guide
The process
Now you've seen the tools, here's the workflow that ties them together. New to ECU mapping? Read this once, then build your tune. Already on Bootmod3 or MHD? Skip straight to the configurator.
Chassis, current setup, what tuning do you require? Build it in the configurator or WhatsApp me directly. Takes 90 seconds.
Pick Bootmod3, MHD, MG Flasher or xHP (I'll tell you which fits your chassis). Already running one? I work with what you've got.
Drive your car, log it through the platform app over OBD, send the file over WhatsApp. Two pulls is usually enough for a baseline.
Custom file in your inbox within 24 hours. Flash it through the same app you logged from. Revisions are included until the tune feels right.
Pick your path
Already running Bootmod3, MHD, MG Flasher or xHP
Configurator covers every BMW chassis from B48 to S63. Pick the stage, pick your add-ons, pay. The moment that lands, I'll be in touch to start discussing your tune. Custom file in your inbox within 24 hours.
New to remote tuning
Tell me your car and what you want. I personally reply on WhatsApp, talk you through the platform choice and the install. Zero pressure, no quote bot.
Build it without leaving the page
Swipe through the engine families I tune. Tap your engine, then your chassis, and the configurator opens with that car loaded, ready for stage choice, add-ons and checkout. Eight engine codes, every BMW chassis I calibrate.
Swipe through the engines

Engine · S58
M3 / M4 / M2 / X3 M / X4 M. The current M-engine: competition-grade torque, sustained boost, twin Bosch MG1 ECUs.
Tap your chassis →

Engine · B58 G2
M240i G42, M340i, M440i, Z4 M40i, X3 M40i, X4 M40i, Supra 3.0. The modern 3.0L turbo six on every G-chassis.
Tap your chassis →


Engine · S55
M3 F80, M3 CS, M4 F82, M4 CS, M4 GTS, M2 Competition. The previous-generation M-engine, properly fed.
Tap your chassis →

Engine · B48
320i, 330i, 330e, 420i, 430i, 530e, 530i, Z4 sDrive20i. Efficient 2.0L four-cylinder. Sharper than stock suggests.
Tap your chassis →

Engine · S63
M5 F10, M5 F90, M6, M8, X5 M, X6 M. The V8 M-platform. Twin-turbo, twin-ECU, properly served.

Engine · N55
M2, M235i, M135i, 335i, 435i, 535i, X3 35i, Z4 35i. The precursor to the B58, still very tuneable.

Track-day calibration
Nürburgring, Silverstone, Dubai Autodrome, Magarigawa, Oulton Park. Track-specific tunes adjust cooling, fuelling, gear holds and throttle response for the circuit you're booked on, so the car runs as if it grew up there.
Swipe through the tracks

Nordschleife · Germany
Nürburgring
View calibration

GP Circuit · United Kingdom
Silverstone
View calibration

GP Circuit · UAE
Dubai Autodrome
View calibration

Private Circuit · Japan
The Magarigawa Club
View calibration

International Circuit · UK
Oulton Park
View calibration

Full Course · USA
Virginia International Raceway
View calibration
Talk to me
Drop your details and I'll come back to you with the right tune for your build. I personally reply on WhatsApp, no quote bots, no waiting queues. Most messages get a response inside the hour during UK working hours.