Sedan BMW M5 F90 was originally created as a universal weapon, combining business class comfort and supercar characteristics. However, even such a refined engine leaves room for improvement, especially for those who want to squeeze the most out of the 4.4-liter V8. Owning a car often begins with a desire to tweak the standard features to make the car sharper, faster and more unique.
The modern market offers many solutions to improve dynamic characteristics and the appearance of the Bavarian sedan. From software to complex mechanical interventions, the choice of modifications is huge. In this article we will look at the most effective ways to transform your M5 Competition or the standard version, relying on the experience of professional tuning studios.
Before making changes, it is important to understand that any tuning requires a competent approach. Incorrect electronic settings or installation of low-quality components can lead to reduced engine life or disruption of safety systems. Therefore, studying the theoretical basis before visiting a service center is a mandatory step for any owner.
Chip tuning and software mods for S63B44T3
With my heart BMW M5 F90 is the engine S63B44T3, which produces 600 horsepower in stock form or 625 horsepower in the Competition version. Software modification (Stage 1) allows you to safely increase power to 700-720 hp. without replacing physical components. This is the most affordable and effective way to feel the difference in acceleration dynamics.
Deeper interventions, such as Stage 2, require the installation of downpipes and a higher-performance intake system. Removing catalysts and setting up lambda corrections allow you to increase power above 750 hp. and significantly change the exhaust sound. However, such mods require the use of high-quality fuel with an octane rating of at least 98-100.
It is important to consider that software changes affect performance transmission ZF 8HP and all-wheel drive xDrive. A competent tuner always adapts the gearbox to the increased torque to avoid slipping and wear of the clutches. Ignoring this stage can lead to premature failure of expensive components.
β οΈ Attention: After chip tuning, the dealer warranty for the engine and transmission is usually void. Use switchable firmware if you plan to visit the official service.
There are several proven solutions for software tuning, each of which has its own calibration features:
- π Bootmod3 β a cloud platform that allows you to independently change maps and configure parameters in real time.
- π οΈ Cobb Accessport β a popular device with ready-made maps and the ability to log engine parameters.
- π§ BM3 Custom β individual tuning by engineers for a specific engine and operating conditions.
- π DME Tuning - solutions often used to achieve maximum performance on the track.
Risks of aggressive chip tuning
If the boost pressure is increased excessively without strengthening the piston group, there is a risk of detonation, which can lead to destruction of the piston walls and an expensive overhaul of the S63 engine.
Improved exhaust and intake system
Sound is emotion and standard exhaust BMW M5 F90 is often criticized for being too strangled by environmental regulations. Installing a sports exhaust system is one of the most popular mods. Replacing mufflers with valve systems from manufacturers like AkrapoviΔ, Remus or Armytrix changes the timbre, making it deeper and more aggressive.
To get the most out of it, you need to replace your catalytic converters with downpipes. This reduces back pressure in the exhaust system, allowing the turbos to spool up faster. The result is reduced turbo lag and increased power in the upper rev range. Downpipes can be sports (with Euro 6 catalysts) or racing (flame arrestors).
Don't forget about the intake system. Installation of carbon air intakes (intake) improves air flow to the turbines. This not only adds the characteristic whistle of turbines during acceleration, but also slightly reduces the temperature of the intake air, which has a positive effect on combustion efficiency.
When installing downpipes, it is imperative to software disable the catalyst control in order to avoid a Check Engine error and the engine going into emergency mode.
Refinement of suspension and braking system
Standard suspension M5 F90 Well balanced, but for track or aggressive driving it can feel like a roll. Installing coilovers or air suspension with adjustable stiffness allows you to adapt the car to specific conditions. Brands KW, H&R and Ohlins offer solutions that maintain comfort but drastically improve handling.
The braking system is a critical element for a performance sedan. Standard brakes may not be enough for frequent trips to the track. Installation of compound discs of larger diameter and multi-piston calipers (for example, from AP Racing or Brembo) provides stable braking without overheating. It is also popular to replace brake fluid with compounds with a high boiling point, such as DOT 4 Racing.
An important element of suspension modification is reinforced silent blocks and rods. They remove excess play, making the car's steering response sharper. This is especially true for the rear suspension, which bears the main load during acceleration.
βοΈ Preparation for the trek
Comparison of popular tuning solutions
The choice of components for tuning often confuses the owner due to the abundance of brands and technologies. To make the decision easier, we have compiled a comparative table of the main areas of improvement.
| Component | Increase in power/effect | Impact on warranty | Cost (approximate) |
|---|---|---|---|
| Stage 1 (Software) | +100-120 hp | High (apparently in the logs) | $$ |
| Exhaust (Axle-back) | Sound, +10 HP | Low (if not cut) | $$$ |
| Downpipes + Stage 2 | +150-180 hp | Critical | $$$$ |
| Coilovers | Controllability | Average | $$$ |
As can be seen from the table, the greatest increase in productivity comes from an integrated approach. However, the cost of such mods increases exponentially. For city use, it is often enough to limit yourself to software chip tuning and an exhaust system.
When choosing mechanical components, it is important to pay attention to materials. Carbon, titanium and aircraft aluminum are preferable to conventional steel, as they reduce the overall weight of the car, which directly affects the dynamics of acceleration and braking.
Body styling and aerodynamics
Appearance BMW M5 F90 aggressive from the factory, but the elements of the carbon body kit can turn it into a real monster. Carbon spoilers, diffusers and mirror caps not only improve visual perception, but also work with aerodynamic flows. Carbon also helps reduce weight, which is critical for a heavy sedan.
A popular mod is to install forged wheels. Alloy wheels with a diameter of 20 or 21 inches reduce unsprung weight, which has a positive effect on suspension performance and acceleration dynamics. Wide track and low profile tires Michelin Pilot Sport or Pirelli P Zero provide excellent grip.
β οΈ Attention: When installing wide rims and spacers, make sure that the car's arches have sufficient clearance. Otherwise, when the cabin is loaded or on uneven surfaces, the wheels may rub against the fender liners.
Particular attention should be paid to cooling. Additional intercoolers and radiators help maintain optimal engine and transmission temperatures in hot weather or under prolonged loads. For M5 Competition this is especially true, since the standard cooling system may not cope with elevated temperatures after chip tuning.
Proper styling is not only about beauty, but also about functionality: improved cooling, aerodynamics and weight reduction.
Electronics and interior
Modern tuning is not complete without modifying the interior and electronics. Installing more powerful multimedia systems with support Apple CarPlay and Android Auto (if not available from the factory) increases comfort. Flashing head units to unlock hidden features such as motion video or turning off seat belt reminders is also popular.
In the cabin, the steering wheel is often replaced with a sports version with a display. LED to display speed and temperature. Alcantara and carbon fiber in the interior replace standard plastic, creating the atmosphere of a racing car. Buckets Instead of standard seats, they provide better lateral support, although they sacrifice comfort on long trips.
Monitoring systems deserve special attention. Installing additional sensors for oil pressure, fuel pressure and exhaust gas temperature allows you to monitor the engine condition in real time. This is critically important for vehicles operated under extreme conditions.
Frequently asked questions (FAQ)
How much horsepower can you safely remove from a stock M5 F90 engine?
Without replacing hardware (turbines, pistons), the S63B44T3 engine reliably maintains about 750-780 hp. on Stage 2. Further growth requires strengthening internals.
Does chip tuning affect engine life?
With proper configuration within reason (Stage 1-2) and high-quality maintenance, the resource decreases slightly (about 10-15%). Aggressive settings shorten the life of the motor faster.
Do I need to change the gearbox after chip tuning?
The ZF 8HP automatic transmission is very reliable and can handle up to 850 Nm of torque. For Stage 1 and Stage 2 there is no need to replace the box, just update the software (TCU tune).
What kind of gasoline should I put in a tuned M5?
For modified versions, gasoline with an octane rating of 98 (according to the research method) or 100+ is strictly recommended. Using 95 octane gasoline may cause detonation.
Will xDrive all-wheel drive remain after tuning?
Yes, software mods do not disable all-wheel drive. On the contrary, proper tuning allows you to more effectively distribute torque between the axles, improving standing starts.