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Stage 1, 2 and 3 figures and the price for your exact engine
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Every car BMW i8 All 1.5i

Hybrid · 1.5 litre · Maidstone, Kent

BMW i8 1.5i remap374 to 405 bhp with Stage 1 software. The figures, the parts and the other engines in this car, on one page.

A Stage 1 remap takes the BMW i8 1.5i from 374 to 405 bhp and from 570 to 650 Nm: 31 bhp and 80 Nm more, on standard hardware. On a plug-in hybrid the remap works on the combustion engine only; the electric motor and battery are untouched, so EV range and charging are unchanged. It is done in a visit at our Maidstone workshop and the original file is kept, so it can go back to standard.

Stage 1 on this engine

What the BMW i8 1.5i makes, standard and remapped

Standard is the factory figure. Stage 1 is the calibration we run on this engine, software only, nothing bolted on.

374405
BHP · Power · +31
570650
NM · Torque · +80
Stage 2 and Stage 3 figures, and the price for each, are in the calculator for this exact engine.Open the calculator →
1k 2k 3k 4k 5k 6k 405 BHP 650 NM
Stage 1 powerStage 1 torque (dashed)Standard

Drawn from the quoted peaks and this engine’s peak rpm from our vehicle data: torque peaks at the quoted Nm, power is derived from it. A measured before-and-after graph comes with a dyno session.

Same car, other engines

BMW i8 All: every engine we tune

All BMW i8 engines (13) · Every BMW we tune (5714) · All makes

Fixed price

Ask about your BMW i8 1.5i

Registration and which stage. We come back with what it needs, what it makes and what it costs, usually the same day.

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Got it. We will come back with the figures and a fixed price for your car.

If you know them, these help us get the quote right first time. Entirely optional.

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Questions

BMW i8 1.5i remap questions

How much power does a Stage 1 remap add to a BMW i8 1.5i?

31 bhp and 80 Nm. Standard is 374 bhp / 570 Nm; Stage 1 is 405 bhp / 650 Nm. That is a 8% power gain and 14% more torque.

How do I get a price for a BMW i8 1.5i remap?

Put the registration into the calculator and it prices Stage 1, 2 and 3 for this exact engine, or send the form on this page and we come back with a fixed price, usually the same day.

Is a Stage 1 remap safe for this engine?

Stage 1 stays inside what the standard turbo, injectors, clutch and cooling were built to take. The figures above are the calibration we run, not a maximum. The car is checked for stored faults before and after, and the original file is kept so it can go back on.

Does remapping a BMW i8 1.5i affect the battery or electric range?

No. The remap changes the petrol engine calibration only. The high-voltage battery, motor and charging are not touched, and EV range is unchanged.

How long does it take, and can it be reversed?

A Stage 1 remap is done in a single visit, usually the same day. The original software is stored and can be restored on request.

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