2018–2020 BMW M5 F90 Stage 2 ECU Tune – Up to 800 HP | Pre-LCI S63

Your BMW M5 Already Has 600 Horsepower. But What If That Was Just the Beginning?

You didn't buy a BMW M5 because you wanted an ordinary sedan.

You bought it for the twin-turbo V8, the incredible acceleration, the unmistakable BMW M performance, and that feeling when you put your foot down.

But here's what most F90 M5 owners don't realize.

Your 4.4L twin-turbocharged S63 engine has significantly more performance potential than the factory calibration delivers.

BMW engineered the M5 to perform across a wide range of conditions, fuel qualities, and driving environments.

That means the factory ECU calibration must balance horsepower, emissions, fuel economy, engine protection, and everyday drivability.

But what happens when you optimize that calibration for performance?

What if your M5 could deliver substantially more horsepower, stronger acceleration, and a more aggressive driving experience with the right supporting modifications?

Introducing the B58 Tuner Stage 2 ECU Tune for the 2018–2020 BMW M5 F90 Pre-LCI.

A performance-focused calibration designed to transform the way your M5 accelerates, responds, and delivers power.

The Performance Numbers Speak for Themselves

<escape>Estimated Stage 2 Performance Targets</escape>

Performance Metric	Stage 2 Target
Horsepower	Up to 800 HP
Torque	Up to 649 lb-ft (880 Nm)
0–60 MPH	2.70 seconds
60–130 MPH	5.50 seconds
Quarter Mile	10.30 seconds

That's up to 200 horsepower above the standard factory-rated 600 HP M5.

Imagine what that additional power could mean every time you accelerate.

Stronger midrange pull.

More immediate throttle response.

And the kind of acceleration that reminds you exactly why you bought an M5.

These figures are advertised estimates and performance targets, not independently verified B58 Tuner test results or guarantees. Horsepower measurement method and testing conditions have not been specified. Actual performance varies by vehicle, fuel, hardware, calibration, and conditions.

The Problem With Leaving Your M5 on the Factory Tune

Your BMW M5 is already fast.

There's no question about that.

But factory software isn't designed exclusively around maximizing performance from upgraded hardware.

When you install performance downpipes without a compatible ECU calibration, you may not take full advantage of the hardware's potential.

And even on an otherwise stock vehicle, the factory engine calibration prioritizes a broad range of operating requirements rather than your individual performance goals.

You may be missing out on:

• Increased horsepower and torque

• Stronger acceleration throughout the RPM range

• Improved turbocharger response

• Sharper throttle behavior

• More responsive midrange power delivery

• Optimized boost control for compatible modifications

• Performance-focused engine torque management

You already own the engine. You already own the turbochargers.

The next step is making sure your ECU calibration is optimized for your performance setup.

Introducing B58 Tuner Stage 2 Performance ECU Tuning

Transform Your F90 M5 Into the Performance Machine You've Always Wanted

Our Stage 2 off-the-shelf (OTS) ECU calibration is designed for the 2018–2020 BMW M5 F90 Pre-LCI equipped with the 4.4L S63 twin-turbocharged V8.

Developed for compatible vehicles with upgraded downpipes and the specified fuel, this calibration optimizes supported engine management parameters to increase performance while retaining appropriate engine protection strategies.

The goal is simple.

More horsepower. More torque. Stronger acceleration. A more exciting driving experience.

And you don't need to replace your entire engine or install larger turbochargers just to pursue the advertised Stage 2 performance targets.

7 Reasons BMW M5 Owners Upgrade to Stage 2

1. Up to 800 Horsepower – Experience the S63's Performance Potential

The factory M5 produces an impressive 600 horsepower.

Our advertised Stage 2 target increases that figure to as much as 800 horsepower under suitable conditions.

That's a potential increase of approximately 33% over the standard factory horsepower rating.

The benefit: Significantly stronger acceleration and a much more aggressive driving experience.

2. Up to 649 lb-ft of Torque

Horsepower gets the attention.

But torque is what you feel when the car pulls hard through the RPM range.

With an advertised target of up to 649 lb-ft (880 Nm), the Stage 2 calibration is designed to deliver strong torque across the usable powerband.

The benefit: Powerful midrange acceleration and responsive performance when you demand it.

3. Estimated 0–60 MPH in Just 2.70 Seconds

Imagine pressing the accelerator and reaching 60 MPH in less than three seconds.

With the right vehicle setup, traction, and conditions, our advertised Stage 2 performance target is approximately 2.70 seconds.

The benefit: Exceptional standing-start acceleration that takes advantage of the M5's sophisticated all-wheel-drive system.

4. Estimated 60–130 MPH in 5.50 Seconds

One of the most exciting characteristics of a tuned twin-turbo V8 is its ability to keep accelerating as vehicle speed increases.

Our advertised Stage 2 target is approximately 5.50 seconds from 60–130 MPH.

The benefit: Strong sustained acceleration that showcases the performance potential of the S63 engine.

High-speed acceleration testing must only be performed in a legal, controlled environment.

5. Estimated 10.30-Second Quarter Mile

A ten-second quarter-mile is serious performance territory for a luxury performance sedan.

With the appropriate setup and favorable testing conditions, the advertised Stage 2 target is approximately 10.30 seconds.

The benefit: The potential for exceptional straight-line performance without an extensive engine build.

6. Improved Throttle and Turbo Response

Horsepower isn't everything.

How quickly your engine responds matters just as much.

Our Stage 2 calibration optimizes supported boost control, throttle response, ignition, fueling, and torque-management strategies.

The benefit: A more immediate response when you accelerate and stronger power delivery throughout the driving experience.

7. Optimized Performance With Upgraded Downpipes

Your upgraded downpipes are part of the Stage 2 hardware package.

When paired with an appropriate engine calibration, they can help support the increased airflow and performance requirements of the modified engine.

The benefit: Better integration between your performance hardware and ECU calibration.

Stage 2 Performance vs. Factory BMW M5

Feature	Factory M5	B58 Tuner Stage 2
Horsepower	600 HP	Up to 800 HP
Torque	553 lb-ft	Up to 649 lb-ft
ECU calibration	Factory	Performance optimized
Boost control	Factory targets	Stage 2 targets
Throttle response	Factory behavior	Performance optimized
Downpipe configuration	Factory hardware	Upgraded downpipes required
Fueling and ignition	Factory strategies	Calibrated for specified fuel
Acceleration	Factory performance	Increased performance potential

Stage 2 figures are advertised targets. The stock figures shown are for the standard 600 HP F90 M5, not the Competition model.

Why Your BMW M5 Responds So Well to ECU Tuning

The Technology Behind the Performance

Your S63 twin-turbocharged V8 is an exceptionally capable engine.

But increasing performance requires more than simply commanding additional boost.

A properly developed ECU calibration coordinates multiple engine management systems.

Boost Pressure Optimization

Adjusts supported turbocharger boost targets and control strategies to deliver increased engine output.

Ignition Timing Calibration

Optimizes ignition timing for the specified fuel quality and operating conditions.

Fuel Delivery Management

Calibrates supported fueling strategies to meet the demands of increased engine load.

Engine Torque Management

Adjusts supported torque modeling and management parameters to coordinate power delivery.

Throttle Response

Refines supported throttle behavior to deliver a more responsive driving experience.

Turbocharger Response

Optimizes supported boost control strategies to improve power delivery and responsiveness.

The result is a performance calibration designed to make these systems work together rather than relying on a single aggressive adjustment.

Real performance tuning is about making the entire engine management system work as a coordinated package.

Stage 2 Hardware and Fuel Requirements

Before installing the Stage 2 calibration, your M5 must meet the required specifications.

Required Hardware

• Upgraded downpipes compatible with the calibration

• Factory or compatible performance turbochargers

• Properly functioning ignition and fuel systems

• Mechanically sound engine

• Properly maintained cooling system

• No unresolved engine or drivetrain faults

Fuel Requirements

99 RON calibration: Requires fuel meeting the specified 99 RON requirement.

U.S. 93 Octane: Available only when using a calibration specifically designed and validated for 93 AKI fuel.

99 RON is approximately 94 AKI, so U.S. 93 octane should not be treated as an exact substitute for a 99 RON calibration.

Always use the fuel specified for the calibration supplied with your order.

Using insufficient octane can result in knock correction, reduced performance, and possible engine damage.

Pair Your Stage 2 Engine Tune With Transmission Tuning

More Engine Power Deserves the Right Transmission Calibration

Here's something many BMW M5 owners overlook.

Your engine and transmission work together to deliver performance.

When you increase engine output, the transmission must manage the additional torque during acceleration and gear changes.

That's why we also offer BMW M5 F90 Transmission Tuning.

Transmission tuning can optimize supported shift timing, clutch engagement, torque-management strategies, and shift behavior to better complement your engine modifications.

When properly matched, engine and transmission tuning can provide:

• Faster, more decisive shifts

• Improved shift responsiveness

• Better coordination of engine and transmission torque management

• More consistent performance-oriented shift behavior

• Improved integration with higher-output engine calibrations

Your Stage 2 tune creates the additional engine power. Transmission tuning helps optimize how that power gets delivered.

Ask us about pairing your Stage 2 ECU tune with our F90 M5 transmission tuning service.

Why Choose B58Tuner.net?

Performance Software Backed by Technical Support

Purchasing an ECU tune should be straightforward.

But selecting the correct calibration, verifying software compatibility, and understanding installation requirements can be confusing.

At B58 Tuner, our focus is on providing performance software solutions with the technical support customers need.

When you purchase from B58Tuner.net, you receive:

• A Stage 2 OTS calibration for the supported F90 M5 platform

• Assistance with compatibility verification

• Guidance on required hardware and fuel

• Installation and flashing support

• BMW-focused performance tuning expertise

• Technical assistance with the tuning process

We're here to help you get the right calibration for your vehicle—not simply sell you a file.

Flashing requirements, supported ECU software versions, and any necessary unlock procedures must be confirmed before installation.

Frequently Asked Questions

How much horsepower will my BMW M5 make with Stage 2?

The advertised Stage 2 target is up to 800 HP, depending on vehicle configuration, fuel, modifications, operating conditions, and measurement method.

How much torque does Stage 2 produce?

The advertised target is up to 649 lb-ft (880 Nm) of torque.

Do I need upgraded downpipes?

Yes. Upgraded downpipes are required for this Stage 2 calibration. They must be compatible with the specific tune and applicable regulations.

Can I use U.S. 93 octane?

Only with a calibration specifically designed for 93 AKI. A 99 RON calibration requires fuel meeting its stated octane requirement.

Do I need upgraded turbochargers?

Upgraded turbochargers are not listed as a requirement for this Stage 2 package. The advertised performance targets depend on the actual vehicle configuration and calibration.

Will Stage 2 improve throttle response?

The calibration is designed to optimize supported throttle, boost, and torque-management strategies for improved performance response.

Do I need transmission tuning?

Transmission tuning is a recommended companion upgrade for consideration, particularly on higher-torque applications. It is not automatically required for every Stage 2 installation.

Can I install the ECU tune remotely?

Flashing and installation requirements depend on the vehicle's ECU software and unlock status. Contact our team to confirm the supported procedure and equipment for your M5.

Will my M5 remain suitable for everyday driving?

The calibration is designed to provide performance-oriented drivability, but actual behavior depends on the vehicle, modifications, fuel, and operating conditions.

Does the tune include technical support?

Yes. We provide assistance with compatibility, installation, and flashing.

Your BMW M5 Was Built to Perform. Now Experience Its Stage 2 Potential.

You already own one of the most impressive performance sedans on the road.

A twin-turbocharged V8.

An advanced all-wheel-drive system.

An exceptional BMW M chassis.

And an engine with serious performance potential.

Now imagine experiencing up to 800 horsepower, stronger acceleration, and sharper response every time you demand performance.

You don't need to settle for the factory calibration when your goal is a more powerful, more responsive M5.

Upgrade to B58 Tuner Stage 2 Today

Up to 800 HP. Up to 649 lb-ft. Estimated 10.30-Second Quarter-Mile Potential.

Take the next step toward unlocking your BMW M5's performance potential.

Add to Cart – Upgrade Your F90 M5 to Stage 2

Compatibility: 2018–2020 BMW M5 F90 Pre-LCI with the 4.4L S63 twin-turbocharged V8. Requires upgraded downpipes and the specified fuel. Advertised performance figures are estimates, not guarantees. Actual results vary. Check local emissions regulations before modifying emissions-related equipment. High-speed and acceleration testing should be performed only at legal closed-course facilities.