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BMW 5 Series G30 on the DC Remapping 4WD dyno

BMW Tuning  /  B57  /  M550d

G30 / G31 · 2017–2020 · B57 quad turbo

BMW M550d xDrive Stage 1 Remap

The rare quad-turbo flagship of the G30 5 Series, built from 2017 to 2020. Already very fast; remapped, it’s relentless.

440bhpPower · from 400
840NmTorque · from 760
£499Stage 1 · inc VAT
Book Stage 1 £499How it drives

M550d on the road

How a remapped M550d drives

+80Nm

Relentless

From any speed in any gear, the M550d just goes. 840Nm turns already big performance into something genuinely relentless.

+40bhp

Pull that keeps building

Four turbos keep the power coming higher up the rev range than most diesels, and the map makes the most of every one of them.

620lb-ft

Quiet authority

Even remapped, the M550d is a calm car until you ask. Then it has an answer for almost anything else on the road.

M550d Stage 1 figures

From 400 to 440bhp

Typical figures for a G30 / G31 M550d on Stage 1.

Power400440bhp+40 bhp · +10%
Torque760840Nm+80 Nm · +11%

M550d remap price

Your M550d, priced

Stage 1

£499inc VAT

Around 440bhp and 840Nm for your M550d.

Book Stage 1

Stage 1 + xHP Most popular

£759save £125

The M550d engine and its ZF8, tuned together with xHP.

Book Engine + Gearbox

Prices include VAT · Finance available

The G30 / G31

About the G30 / G31 M550d

The M550d xDrive was the quad-turbo flagship of the G30 5 Series, built from 2017 to 2020: 400bhp and 760Nm from a 3.0 diesel. It’s a rare car and already very fast, so the map smooths the delivery and adds a solid slice on top, to around 440bhp and 840Nm.

Engine
B57 quad turbo, 2993cc
Chassis
G30 / G31 · 2017–2020
After Stage 1
440bhp · 840Nm · 620 lb-ft
Gearbox
ZF 8-speed automatic
ECU
Bosch MD1CP002
Locked ECU?
Only the last 2020 cars · £100 same-day unlock · check yours

Questions

M550d remap questions

How much bhp does a BMW M550d xDrive remap add?
A G30 / G31 M550d goes from 400bhp and 760Nm to around 440bhp and 840Nm on Stage 1: 40 more horsepower and 80Nm more torque.
Why is the M550d £499 rather than £449?
The quad-turbo engine takes more work to map properly, so Stage 1 is £499, or £759 with our xHP gearbox software.
Do you tune the X5, X6 and X7 M50d too?
Yes. See our M50d page for the other quad-turbo cars.
Do you tune the M550d Touring?
Yes. The G31 M550d Touring has the same quad-turbo engine as the saloon and gets the same map.

Your M550d, at 440bhp.

For G30 / G31 M550d cars, 2017–2020. Same day, on our dyno in Warrington.

Book Stage 1 £499Call 01925 819002