Find your BMW below, see which engine it runs and exactly what bootmod3 (bm3) offers for it. Every tune we supply is engine-specific and developed against real data - tell us your model and we will get you on the right map.
Start here
Bootmod3 support is tied to the engine and ECU in your specific car. The same model can run a different engine across generations - so the first step is always identifying the exact unit under your bonnet. Prefer to browse by engine instead?
Useful next steps
Identify your engine - N20, N55, S55, B48, B58, S58 or S63
Choose your stage based on hardware and goals
Sort your licence and OBD adapter
We supply, you flash, then we refine from your logs
Find your car
Each block shows the engine your model uses and what bootmod3 brings to it. Tap the CTA on any car to start a quote for your exact spec.
Engine: N55, S55 and S58
The pre-LCI M2 runs the N55; the M2 Competition and CS use the S55; the latest G87 M2 is S58. Bootmod3 covers all three with stage maps that lift boost and sharpen response, and the S55 / S58 cars respond strongly once the supporting hardware is in place.
Engine: S55 and S58
The F80 M3 is S55; the G80 M3 is S58. Bootmod3 is one of the most popular platforms for both. Expect a meaningful gain on a Stage 1 OTS map with a real step on Stage 2 once downpipes and intakes are fitted.
Engine: S55 and S58
Mechanically the M4 shares its drivetrain with the M3 - S55 on the F82, S58 on the G82. The same bootmod3 maps and methodology apply, so a coupe or convertible tunes exactly like its saloon counterpart.
Engine: S63
The F90 M5 runs the twin-turbo S63. Bootmod3 unlocks the headroom in this engine with large, repeatable gains, and it pairs well with downpipes and an uprated intake for the bigger setups.
Engine: N55
The pre-facelift M135i is a single-turbo N55 - a brilliant base for bootmod3. A Stage 1 map sharpens throttle and torque delivery noticeably, and the platform supports staged upgrades as you add hardware.
Engine: B58
The M140i uses the B58, one of the strongest stock-internals straight-sixes BMW has built. Bootmod3 is a popular choice here - expect a strong, smooth gain on pump fuel and more again on higher-octane or ethanol blends.
Engine: N55
The F22 M235i shares the N55 with the M135i and tunes the same way. Bootmod3 gives a responsive, reliable Stage 1 result, with room to grow as you fit a downpipe and intake.
Engine: B58
The M240i runs the B58 across the F22 LCI and the latest G42. Bootmod3 delivers a big, linear gain from this engine - it is one of the most rewarding cars to tune for the money.
Engine: B58
The M340i is a B58 car and a firm favourite for bootmod3. A Stage 1 map transforms the mid-range, and the engine takes higher-octane and ethanol maps well once you have the supporting mods.
Engine: B48 (plug-in hybrid)
The 330e pairs a B48 four-cylinder with an electric motor. Tuning a plug-in hybrid has its own considerations, so the right map and setup matter - talk to us about your exact car and what is realistic before you commit.
Engine: N20 and B48
The 320i runs the N20 on the F30 and the B48 on the G20. Both respond well to bootmod3 with a sensible, daily-friendly Stage 1 that wakes the car up without stressing the drivetrain.
Engine: S58
The X3 M (and X4 M) use the same S58 as the G80 M3. Bootmod3 brings the same strong gains - this is a fast SUV that tunes like an M car because, underneath, it largely is one.
Engine: S55
The F80 generation M3 is the S55 car. It is a proven bootmod3 platform with a deep map catalogue, strong OTS options and excellent custom potential once the hardware is sorted.
Engine: S63
The F90 designation covers the M5 and M5 Competition, both S63. Bootmod3 is a popular route for this car given how much the S63 responds to a calibration - expect serious, repeatable gains.
What you get
Whatever the badge, the principle is the same: we calibrate the engine in front of us against real load and real data, not headline numbers. Stage 1 sharpens a stock car; Stage 2 and beyond build with your hardware.
How every model tune works
Off-the-shelf maps for a fast, proven Stage 1 result
Stage 2 maps once downpipes and intakes are fitted
Higher-octane and ethanol options where the engine supports it
Custom remote tuning refined from your own logs
Not sure where your model sits? Send your car details and we will recommend the right stage and hardware before you spend anything.
Before you buy
Getting bootmod3 onto your car means a licence, the correct OBD adapter for your model and a clear idea of cost. These pages cover the essentials.
Licence
What a bootmod3 licence covers, how it ties to your VIN and what is included for your model.
Learn moreHardware
The correct OBD adapter for your BMW and how to flash maps reliably at home.
Learn moreCost
Indicative pricing for licence, maps and custom tuning - we quote your exact spec.
Learn moreStages
What separates Stage 1 from Stage 2, and the hardware each stage needs on your model.
Learn moreBy engine
Prefer to browse by engine code - N55, S55, B58, S58, S63 and more.
Learn moreBackground
New to bm3? A plain-English explainer on the platform and how flashing works.
Learn moreOn MHD instead?
Bootmod3 is not the only route. MHD is an excellent platform for many of these engines, especially the N54, N55, B58 and S55. If you are weighing the two, we will tell you honestly which suits your car and goals.
MHD
Which BMW engines and models MHD covers, and what each gets.
Learn moreMHD stages
MHD stage maps and the hardware each one expects.
Learn moreMHD
How the MHD licence works and what it includes.
Learn moreMHD hardware
The adapter you need to flash MHD reliably on your model.
Learn moreFAQ
Bootmod3 covers a wide range of BMW engines across many models - including the M2, M3, M4, M5, M135i, M140i, M240i, M340i, 330e, 320i and X3 M. Support is tied to the engine and ECU in your specific car rather than the badge alone, so send us your model, year and VIN and we will confirm exactly what is available for it.
Yes - the tune follows the engine. The same model name can run different engines across generations: the M2 spans N55, S55 and S58, while the 320i runs N20 or B48 depending on year. We map the engine and ECU in your car, so identifying the exact unit is the first step in getting the right calibration.
Gains vary by engine, fuel and supporting hardware. A Stage 1 map on a stock car typically gives a strong, safe increase in power and torque, with a further step on Stage 2 once downpipes and intakes are fitted. Higher-octane and ethanol maps add more again. We quote realistic figures for your exact setup rather than headline numbers.
For Stage 1 you usually need a licence and the correct OBD adapter and nothing else. Stage 2 and beyond benefit from hardware such as downpipes, intakes and uprated intercoolers. We will tell you what your model needs for the result you are after before you spend anything.
Message us with your model, year and modifications. We confirm bootmod3 support for your engine, recommend the right stage and hardware, and guide you through licence, adapter and flashing. The whole process is remote and straightforward.
Ready when you are
