Sell your car for free

1991 BMW 525i

M50B25 inline-six, stroked to ~3.0 liters, rear-wheel drive, 5-speed manual, modified

1991 BMW 525i

M50B25 inline-six, stroked to ~3.0 liters, rear-wheel drive, 5-speed manual, modified

VIN:
WBAHD51040BG34581
Mileage:
209,000

km

Engine:
3.0 l stroked M50B25 I6 (240 HP, 176 kW)
Transmission:
Manual
History and additional information

This 1991 BMW 525i is an E34 sedan featuring a stroked M50B25 inline-six paired with a 5-speed manual gearbox. The engine was fully rebuilt around 2,000 km ago and was dyno-tested after completion; displacement was increased to roughly 3.0 liters.

The roadworthiness inspection is valid until August 2026. The car comes with an original Hella rear spoiler and matching upholstery fabric for retrimming the door cards. All documents are reportedly in order.

Modifications

• M54B30 crankshaft

• AMP44 84.5 mm forged pistons

• Modified M5 exhaust manifolds

• New gaskets and key engine components

• ECU remap

• Custom exhaust system (from an E32 750i)

• LSD 3.6x Type 188 differential (approx. 60–70% lock-up, additional clutch plates)

• M3 clutch kit

• Style 32 18-inch wheels (sandblasted and powder-coated)

• Original M5 four-seat interior

• Alcantara headliner and pillars

• M-Tech 2 steering wheel

• Wood trim

• Hella rear light center panel

• Power front windows (rear wiring installed; mechanisms included)

• Android head unit with Bluetooth

• Electric sunroof

• Short shifter

• Lowered suspension

• Two original keys with central locking remotes

Known Issues

• Color mismatch on body panels

You might also like:

Newsletter illustration

Eager for more?

In our newsletter we share our favorite ads, stories from our own garages and hot takes you most likely will hate.

By subscribing, you agree to Privacy policy