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BMW B57 3.0 straight-six diesel engine

BMW Tuning  /  B57  /  640d GT

G32 · 2017 on · B57 twin turbo

BMW 640d Gran Turismo Stage 1 Remap

Twin-turbo pace in a comfortable fastback. The G32 640d GT is quicker than it looks, and Stage 1 makes it quicker still. (Looking for the older 640d coupé? See our 640d page.)

400bhpPower · from 320
800NmTorque · from 680
£449Stage 1 · inc VAT

640d GT on the road

How a remapped 640d GT drives

+120Nm

Effortless cruiser

800Nm in a car this comfortable means the engine barely has to work, yet there’s always a surge waiting under your right foot.

+80bhp

Wet or dry

xDrive puts the extra power down cleanly, so the GT stays composed when you use it.

590lb-ft

Quicker than it looks

From the outside it’s a family GT. Remapped, it keeps up with far sportier cars, and nobody in the back will notice it trying.

640d GT Stage 1 figures

From 320 to 400bhp

Typical figures for a G32 640d GT on Stage 1.

Power320400bhp+80 bhp · +25%
Torque680800Nm+120 Nm · +18%
399.1bhp on our dyno

The 640d GT shares its B57 twin turbo with a customer BMW 740d xDrive we mapped: 312.7 to 399.1bhp and 679 to 808Nm, measured on our rollers. See that dyno sheet

640d GT remap price

Your 640d GT, priced

Stage 1

£449inc VAT

Around 400bhp and 800Nm for your 640d GT.

Book Stage 1

Stage 1 + xHP Most popular

£709save £125

The 640d GT engine and its ZF8, tuned together with xHP.

Book Engine + Gearbox

Prices include VAT · Finance available

The G32

About the G32 640d GT

The 640d xDrive Gran Turismo pairs the GT’s comfort and space with the twin-turbo B57. It’s a quick car that rarely feels it, and Stage 1 makes that pace even easier to reach. It isn’t the older F06, F12 and F13 640d coupé, which has the N57.

Engine
B57 twin turbo, 2993cc
Chassis
G32 · 2017 on
After Stage 1
400bhp · 800Nm · 590 lb-ft
Gearbox
ZF 8-speed automatic
ECU
Bosch MD1CP032
Locked ECU?
Cars built from around June 2020 · £100 same-day unlock · check yours

Questions

640d GT remap questions

How much bhp does a BMW 640d Gran Turismo remap add?
A G32 640d GT goes from 320bhp and 680Nm to around 400bhp and 800Nm on Stage 1: 80 more horsepower and 120Nm more torque.
Is the 640d GT the same as the 640d coupe?
No. The G32 GT has the B57; the older F06, F12 and F13 640d has the N57. We tune both. See our 640d page for the coupe.
Will it still be comfortable?
Yes. The map adds pull without making the car feel harsh or jerky; the ride and refinement don’t change.
Is the 640d GT the same engine as the X5 40d?
Yes. It is the twin-turbo B57 also found in the 740d and X5 40d, and after Stage 1 it makes around 400bhp and 800Nm like them.

Your 640d GT, at 400bhp.

For G32 640d GT cars, 2017 on. Same day, on our dyno in Warrington.