
ECU flash · cloud
Bootmod3
Cloud-based ECU flashing for B58, S58, N55, S55, B48, S63 and more. App-driven, OTA map delivery, end-to-end custom-tune support. Samuel's primary platform for G-series builds.
F-series · G-series
Hand-calibrated ECU and TCU files for every B58, S58, B48, S55, S63 and N55 BMW. Stage 1 to fully custom, built one car at a time, by Samuel.
The platforms behind the tune
Samuel calibrates files for the four platforms BMW tuning runs on. Pick the one your car already supports, or ask Samuel which suits your chassis best.

ECU flash · cloud
Cloud-based ECU flashing for B58, S58, N55, S55, B48, S63 and more. App-driven, OTA map delivery, end-to-end custom-tune support. Samuel's primary platform for G-series builds.
F-series · G-series

ECU flash · mobile app
Mobile-app ECU flasher with deep heritage on N54, N55 and S55. Android and iOS, OBD-cable based, the established choice for E and F-series turbo builds.
E-series · F-series

ECU flash · desktop
European-rooted ECU platform with strong B58 and S58 support. Custom file delivery, simple workflow, growing fast in the EU and Middle East market.
B58 · S58 specialist

TCU flash · gearbox
ZF 8HP and DKG transmission tuner. Faster shifts, raised torque limits, launch control, calibrated to match the engine tune so the gearbox keeps up with the power.
ZF 8HP · DKG
Not sure which platform suits your build? Ask Samuel — he'll point you to the right one.
Message Samuel
Message SamuelB58 / S58 / B48 / S55 / S63 / N55 specialist
Hand-calibrated, never templatedMessage Samuel
Manual file delivery
Message SamuelWorldwide remote24h turnaround
Message SamuelB58 / S58 / B48 / S55 / S63 / N55 specialist
Hand-calibrated, never templatedMessage Samuel
Manual file delivery
Message SamuelWorldwide remote24h turnaroundSplit into 3 · 0% interest · Klarna or Clearpay at checkout
Pick your engine
Don't know your engine? Search your model.


Engine
M3 / M4 / M2, competition-grade torque, sustained boost
View tuning & chassis


Engine
M340i / M440i / Z4 M40i / Supra 3.0, modern smoothness, high ceiling
View tuning & chassis


Engine
M140i / M240i / 340i / 440i, the icon B58, refined
View tuning & chassis


Engine
330i / 430i / 530i / Z4 sDrive20i, efficient and sharper than stock suggests
View tuning & chassis


Engine
Cooper S & JCW — F54 / F55 / F56 / F57 / F60. The BMW B48 turbo four (B46 in the US), the same engine we tune in the 320i / 330i.
View tuning & chassis


Engine
M5 F90 / M8, the V8 M-platform, refined and sustained
View tuning & chassis


Engine
M3 F80 / M3 CS / M4 F82 / M4 CS / M4 GTS / M2 Comp, the analogue M, properly fed
View tuning & chassis


Engine
M2 / M235i / 135i / M135i / 335i / 335i E9x / 435i / 535i / X3 35i / Z4 35i, the precursor to the B58, still tuneable
View tuning & chassis


Engine
125i / 228i / 328i / 428i / 528i / X3 28i / Z4 28i, the 2.0L turbo four
View tuning & chassis
Can't find your exact car? Message Samuel and he'll confirm your options in minutes.
Message SamuelCircuit Package · CS+
Setup for the terrain, coolant headroom, brake-recovery temps, torque delivery for corner exit, fuel strategy through fast complexes. Different intent, not a different stage.
Explore Track TuningHow it works
No mystery, no upsell spreadsheet. The same simple path for a Stage 1 M140i and a 1000 bhp big-turbo M3.
01
Step
Choose Stage 1, 2, 2+, hybrid or big-turbo. Add ethanol, multimap, flame tune, or flex fuel to fit your build.
02
Step
WhatsApp Samuel with your full setup, chassis, hardware, intent. He quotes within hours, never days.
03
Step
Files delivered manually within 24 hours of confirmation. You flash via your platform of choice. You drive.
Got your spec ready? Send it to Samuel and get your build moving.
Message SamuelReal reviews from BMW owners Samuel has tuned for, pulled straight from Google.
“Samuel is on another level honestly. I've used him for ECU & TCU mapping on my X4M Competition, M140i, 330e and Golf R, and every single car has come back feeling absolutely unreal. The difference in performance and drivability is night and day. The X4M now pulls like a freight train, the M140i feels savage, the 330e is smoother and way more responsive, and the Golf R absolutely flies through the gears. Throttle response is instant, shifts are crisp and aggressive when you want them to be, but still smooth enough for daily driving. What impressed me most wasn't just the tuning, it was the service. I turned up with three cars in one go which most places would moan about or rush through, but Samuel stayed late without hesitation just to make sure every single car was done properly.”
X4M / M140i / 330e / Golf R owner
Three cars in one visit
Ready when you are
The configurator opens the moment you click your engine. WhatsApp is open if you'd rather talk first.