BMW I8 I8 Stage 1: 362→403hp | DMS Tuned

BMW I8 I8 Stage 1: 362→403hp

BMW I8 I8 Stage 1: 362hp → 403hp, 570→655Nm. Custom calibration written for your car and proven on our dyno, not an off-the-shelf file. From €450. Athens +…

BMW I8 Stage 1: 362 hp → 403 hp

Factory output for the BMW I8 I8 is 362 hp and 570 Nm. A Stage 1 remap targets 403 hp and 655 Nm — 41 hp (+11%) and 85 Nm (+15%).

Those are the figures we work to on this engine. They are a starting point, not a promise: the number we hand back is the one your car makes on our dyno, measured before and after on the same day, in the same conditions.

What 41 hp changes on the road

Taking the I8 from 362 hp to 403 hp, with torque from 570 Nm to 655 Nm, is felt less as a bigger top number than as a shorter wait for it — the engine answers the throttle sooner and holds the pull further up the rev range.

Tell us the exact engine code and we will say precisely what is on the table for your car before you commit to anything.

What Stage 1 involves on a BMW I8

We read the ECU, log the car as it stands, and put it on the dyno to confirm the 362 hp baseline — a tired or faulty engine gets diagnosed before it gets mapped, not after.

The calibration is written for your car, not pulled from a file library. We adjust fuelling, ignition timing and throttle mapping, then re-run the dyno to verify the 403 hp and 655 Nm figure and check knock, lambda and temperatures under load.

Turnaround is same-day for most cars. Stock file is archived, so the car can go back to standard whenever you want.

Which BMW I8 this covers

These figures are for the I8 as fitted 2014–2017. Engine code and ECU type decide what is possible, so send us the registration or VIN and we will confirm the exact variant before you book anything.

BMW I8 remap price and booking

Stage 1 for the BMW I8 I8 starts at €450, including the dyno runs before and after and the stock-file archive.

We work from Leoforos Karamanli 127, Artemida 19016, east of Athens, and tune remotely across Europe where the ECU allows it. WhatsApp +30 697 728 8810 with your registration for a straight answer on your car.

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