BMW · 335d · F30/F31 2012–2019
The BMW 335d B57 twin-turbo diesel is one of the finest remap platforms available. Astonishing torque gains from a diesel that already feels devastatingly fast in standard form.
| Standard | Stage 1 | Stage 2 | |
|---|---|---|---|
| Power | 313hp | 380hp+67hp (+21%) | On request |
| Torque | 630Nm | 760Nm+130Nm (+21%) | On request |
| Engine | B57 3.0d Twin-Turbo · 2,993cc · Diesel | ||
| Warranty | Lifetime software warranty included | ||
Stage 1 & Stage 2
The B57 3.0d is BMW's flagship diesel six-cylinder. The twin-turbo setup has substantial headroom from the factory — BMW deliberately limits output to protect drivetrain components and differentiate model lines. A remap safely closes that gap.
A Stage 1 remap on the BMW 335d requires no hardware modifications. Our specialist software recalibrates boost, fuelling and ignition timing within the engine’s safe limits, delivering instant, driveable gains you’ll feel from the first drive.
What Changes
We recalibrate both turbo stages, fuelling and injection pressure on the B57. The torque increase is the headline — +130Nm transforms throttle response and in-gear acceleration. The car feels like a different machine from low revs.
Factory boost is set conservatively. We raise it to the level the turbo and internals can comfortably sustain, unlocking power that was always there.
Fuel delivery is recalibrated to match the new boost levels precisely — giving a cleaner burn, better response and improved efficiency under light loads.
Timing is advanced where the engine can safely benefit, improving combustion efficiency and delivering more torque across the full rev range.
The factory throttle map is deliberately muted. We sharpen it so the car responds the moment you press the pedal — no lag, no hesitation.
Common Questions
Pricing depends on the specific variant and stage. Contact us for a quote — we’re competitively priced and include a lifetime software warranty on every remap. Call 01792 732 062 or fill in the booking form.
A quality remap modifies the ECU’s calibration data rather than adding any external hardware. While a dealership with specialist equipment could detect a changed map, it leaves no physical trace and does not trigger warning lights.
Both options are available. Our workshop in Ammanford has a MAHA 4WD dyno for before/after verification. Our mobile technicians also cover the whole of South Wales and can come to your home or workplace.
The B57 is a robust, over-engineered engine. Our calibrations stay within safe limits for the internals and drivetrain. The remap is a software change only — no stress is added beyond what the components were designed for.
Yes — and we can also remap the ZF 8-speed gearbox (TCU remap) for faster shift speeds and higher torque limits, which pairs perfectly with the engine remap.
Book Your Remap
Fill in the form and we’ll confirm within 24 hours. Lifetime software warranty included on every remap.
We’ll confirm within 24 hours.