How much HP can I gain with a BMW 650i Stage 1 tune?

With a Stage 1 ECU tune, your BMW 650i 2011-2018 can go from 449 HP to 585 HP, a gain of +136 HP.

Is ECU tuning safe for my BMW?

Yes. Westtuned uses manufacturer-calibrated ECU remapping with safe parameters. Stage 1 tunes require no hardware modifications and are fully reversible.

BMW 650i

Name: BMW 650i 2011-2018 ECU Tuning +136HP | Westtuned
Brand: Westtuned
SKU: WT-291
Availability: InStock

2011-2018 | 449 HP -> 585 HP

POWER

449 HP

585 HP

+136 HP

TORQUE

480 Nm

610 Nm

+130 Nm

ORDER FOR STAGE 1

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What Will Your Car Feel Like?

Estimated performance improvements

— sec

0-60 MPH

Stock: —s → Tuned: —s

—

— sec

¼ Mile

Stock: —s → Tuned: —s

—

— HP/ton

Power-to-Weight

Stock: — → Tuned: —

—

Estimates based on performance data. Actual results may vary depending on conditions, fuel quality, and vehicle specifics.

Performance Curve

Stock Stage 1

Detailed Description

BMW 650i 2011-2018 Tuning Software by Westtuned

For BMW 650i owners who demand more from their 2011-2018, Westtuned offers custom ECU remapping software that transforms performance from the ground up. Every calibration is tailored to your vehicle's exact specifications, ensuring safe, reliable gains you can feel on every drive.

Using dyno-proven calibrations and safe air-fuel and boost targets, we offer Stage 1 software tailored to your exact hardware and driving style. Whether your BMW 650i 2011-2018 is stock or modified, our tuning optimises performance for both street and track use.

Stage 1 software pushes your BMW 650i 2011-2018 from the stock 449HP / 480Nm to 585HP / 610Nm — a gain of +136HP, achieved with no hardware modifications required.

From a completely stock BMW 650i 2011-2018 to a fully modified build, Westtuned has the right calibration to match your hardware and unlock the performance you're after.

Choose Westtuned for:

Custom ECU remapping for BMW 650i 2011-2018
Stage 1 performance software
Stage 1: 449HP → 585HP (+136HP)
Improved throttle response and torque delivery
Safe, data-driven tuning with reliability in mind

Experience the difference that properly calibrated ECU software makes — contact Westtuned and take the first step towards unlocking your BMW 650i 2011-2018's full potential.