How To Build BMW M4 CS: Steps, Specs, and Customizations
Building a custom BMW M4 CS is a thrilling project. This car is already a beast on the road. The S55 engine is built for power, handling over 1,000HP. CarBahn Autoworks is known for its high-performance engine work, including Stage 2 engines for several BMW models.
Customizing a BMW M4 CS involves many areas. You can modify the engine, chassis, suspension, transmission, and body panels. CarBahn has been building racing engines for 45 years and has won 12 championships. They know how to make a car perform at its best.
BMW M4 CS Base Components
The BMW M4 CS is known for its impressive base components. It’s ready for high performance and customization. Knowing the core elements is key for any build enthusiast.
Factory Specifications
- Engine Output: 543 hp
- Peak Torque: 479 lb-ft
- 0-60 mph: 3.2 seconds
- Top Speed: 188 mph with M Driver’s Package
- Standard Wheels: 19-inch front and 20-inch rear
Required Parts Checklist
- Carbon fiber center console
- Performance exhaust system
- Upgraded brake pads and rotors
- Aftermarket suspension kits
- High-performance tires
Tools and Equipment Setup
- Comprehensive automotive tools set
- Specialized torque wrenches
- Diagnostic scanners
- Engine hoists and lifts
- Precision measuring instruments
Engine Assembly Process
Building the BMW M4 CS engine is a detailed process. It focuses on both looks and performance. The first step is adding aftermarket charge pipes. This boosts airflow, leading to better power enhancement.
Then, upgrading the intake system is key. High-performance intakes let more air into the engine. This supports the 550hp output of the M4 CS engine. These performance upgrades boost power and make the engine more responsive.
- Aftermarket Charge Pipes
- High-Performance Intakes
- Upgraded Turbochargers
- Enhanced Fuel Injectors
Mixing looks with function is important. This ensures the engine looks good and performs well. Each part is tuned carefully. This boosts the power enhancement and efficiency of the M4 CS.
| Component | Upgrade | Benefit |
|---|---|---|
| Charge Pipes | Aftermarket | Improved airflow for better power |
| Intake System | High-Performance | Supports increased horsepower |
| Turbochargers | Upgraded | Enhanced boost pressure |
| Fuel Injectors | Enhanced | Better fuel delivery for efficiency |
Chassis and Suspension Modifications
Improving the BMW M4 CS suspension is key for top performance. Good chassis tuning makes the car handle better on the road and track.
Suspension Geometry
The F80 M3 and F82 M4 sometimes struggle with suspension geometry. Using adjustable parts helps fix understeer and balance. Lowering springs also lower the car’s center of gravity, reducing body roll and making driving smoother.
- Camber plates let you adjust front negative camber for better grip.
- Adjustable drop links stop suspension parts from hitting each other after lowering.
- Coilovers let you adjust damping for better handling on the track.
Frame Reinforcement
Strengthening the frame is vital for handling more power. You can weld in reinforcements or add aftermarket braces. These steps make the car stiffer, improving its response and lasting longer.
Brake System Integration
Brake upgrades are key for safety and control. Pagid RSC pads work great with iron rotors for effective braking. Upgraded brakes offer better control and stability when driving hard.
Upgrade Summary
| Component | Upgrade | Benefit |
|---|---|---|
| Suspension | Lowering Springs | Reduces center of gravity and body roll |
| Camber | Camber Plates | Increases front axle grip |
| Brakes | Pagid RSC Pads | Enhanced braking performance and stability |
| Chassis | Frame Reinforcements | Improves structural rigidity |
Transmission and Drivetrain Setup
Setting up the transmission and drivetrain is key to getting the most out of your BMW M4 CS. The M4 CS transmission, an eight-speed M Steptronic with Drivelogic, works well with the x-drive system. This combo boosts performance in various driving situations.
To boost your M4 CS’s performance, think about these upgrades:
- Aftermarket Clutch Kits: Make shifts smoother and last longer.
- Upgraded Differentials: Better power distribution means more grip.
- Performance Flywheels: They cut down on mass for quicker starts.
There are also tuning options to fine-tune the M4 CS transmission. Tuning can tweak shift points and firmness. This makes driving more responsive, whether on the road or the track.
| Upgrade | Benefits |
|---|---|
| Aftermarket Clutch Kits | Improved shift feel and durability |
| Upgraded Differentials | Better power distribution and traction |
| Performance Flywheels | Faster acceleration by reducing rotational mass |
Body Panel Installation
Installing the right body panels is key to enhance your BMW M4 CS’s look and performance. A quality M4 CS body kit can transform your vehicle’s appearance while providing practical benefits.
Carbon Fiber Components
Carbon fiber panels are a favorite among BMW enthusiasts. These lightweight panels not only reduce the car’s weight but also add a sleek, modern aesthetic. Many builds incorporate OEM carbon rear winglets and side skirts for a seamless fit.
Prices for carbon fiber components vary. Kits range from $3,200 for basic setups to over $12,000 for more complete options like the Adro full body kit.
Aerodynamic Elements
Aerodynamic upgrades improve the M4 CS’s handling and stability. Adding spoilers and diffusers helps manage airflow, reducing drag and increasing downforce. These modifications enhance both track performance and road presence.
Brands like NWCarbon Haus offer competitive pricing on aerodynamic parts. This makes it easier to customize your BMW without breaking the bank.
Paint and Finish Options
Choosing the right paint and finish highlights the new body panels and aerodynamic features. From matte finishes to high-gloss paints, there are numerous options to customize your M4 CS’s look. Professional painting ensures a flawless finish that complements the carbon fiber and aerodynamic upgrades.
This makes your BMW stand out on the road.
Interior Component Integration
Upgrading the BMW M4 CS interior makes driving more enjoyable. It combines comfort with high performance. Performance seats like the M Carbon bucket seats offer great support during fast drives. They mix racing comfort with long-distance usability.
Choosing the right M4 CS interior upgrades means picking materials and finishes that show your style. Custom trim options, such as aluminum or carbon fiber, add a unique look. These touches not only improve the look but also keep the car’s sporty feel.
Safety is key in any high-performance car. Many people choose to add roll cages for better safety and protection. Also, features like the BMW G8X Fire Extinguisher Kit are great for track use.
- Enhanced driver support with performance seats
- Personalized interiors through custom trim
- Increased safety with roll cage installations
| Standard Interior | Upgraded Interior |
|---|---|
| Basic fabric seats | Performance M Carbon bucket seats |
| Standard trim materials | Custom aluminum and carbon fiber trim |
| No roll cage | Integrated roll cage for safety |
Electronic Systems Configuration
Setting up the electronic systems is key for your BMW M4 CS. The right M4 CS tuning makes sure everything works well together.
Engine Management System
The engine management system controls your M4 CS’s performance. By adjusting the ECU, you can boost horsepower and torque. This makes the engine more responsive.
Performance Monitoring Equipment
Performance monitoring tools let you see important data in real-time. These tools give you insights into engine health, fuel use, and driving feel. They help with effective performance monitoring.
Safety Features Implementation
Improving safety is very important. Adding advanced vehicle electronics like radar detectors and custom engine bay covers boosts safety. They also make the car look better.
- Advanced ECU tuning for better performance
- Real-time data tracking with performance monitors
- Installation of additional safety electronics
These upgrades are vital for better driving in the BMW M4 CS. They ensure both great performance and safety.
Performance Testing Protocols
The BMW M4 CS goes through detailed performance tests to make sure all changes work well. It includes M4 CS dyno testing, track performance checks, and lots of road testing.
M4 CS dyno testing looks at the engine’s power, checking it has 543 horsepower and 479 lb-ft of torque. Engineers test it under different driving conditions. This helps make sure the engine works well at all RPMs, giving reliable power.
Track performance tests are done on famous tracks like the Nürburgring’s Nordschleife. The M4 CS did a lap in 7:21.99, showing off its great chassis and aerodynamics. These tests check how fast it goes from 0-60 mph in 3.2 seconds and its top speed of 188 mph.
Road testing mimics daily driving to check how the car handles, feels comfortable, and is safe. This part finds any tweaks needed to make driving better and ensure the M4 CS works well in all situations.
BMW uses results from M4 CS dyno testing, track performance, and road testing to perfect the M4 CS. This careful method makes sure every M4 CS meets high expectations from fans and drivers.
| Testing Phase | Key Metrics |
|---|---|
| M4 CS Dyno Testing | 543 hp, 479 lb-ft torque, peak torque at 2,750-5,950 rpm |
| Track Performance | 7:21.99 lap at Nürburgring, 0-60 mph in 3.2 seconds, top speed of 188 mph |
| Road Testing | Handling, comfort, safety feature verification |
Final Verdict
Turning a BMW into a custom M4 CS is a fulfilling project. It shows the mix of skill and love for cars. Every step, from picking parts to tweaking details, makes the car better.
The path to success is not easy, but the results are worth it. Improving the engine, suspension, and adding new tech are key. These changes make the car perform better.
Creating a custom M4 CS does more than just improve the car. It also gives you a sense of pride. It proves what hard work and knowledge can do in car customization.
We suggest that car lovers be creative and pay close attention to every detail. Sharing your experiences and results can motivate others. It builds a community of BMW fans.
Get involved and share your success. Your advice and stories can guide others. Together, we can celebrate the BMW M4 CS’s legacy.
Common Queries
What is the estimated cost to build a custom BMW M4 CS?
The cost to build a custom BMW M4 CS varies a lot. It depends on the type of modifications and the quality of parts. On average, you might spend $20,000 to $50,000 for a full custom build. This includes performance upgrades, body changes, and interior improvements.
How long does it take to complete a BMW M4 CS custom build?
The time it takes to build a custom BMW M4 CS varies. It depends on how complex the modifications are and how fast you can get parts. Generally, it can take 3 to 12 months. Planning ahead and getting parts early can speed up the process.
Are the modifications to the BMW M4 CS street legal?
Many BMW M4 CS modifications are street legal. But, you must check local laws and regulations. Make sure upgrades like exhaust systems, suspension, and body kits meet emission standards and safety requirements. Always check with local authorities or a legal expert before making final changes.
Can I perform the BMW M4 CS build myself, or should I seek professional help?
Building a custom BMW M4 CS needs knowledge of car mechanics and special tools. If you’re skilled, you can do some parts yourself. But, for complex tasks like engine tuning or chassis work, it’s best to get professional help. This ensures quality and performance.
How do custom modifications affect the warranty of the BMW M4 CS?
Custom modifications can affect the BMW M4 CS warranty. Changes to major parts like the engine or transmission might void some warranties. It’s wise to talk to your BMW dealer and review the warranty before making big changes.
What impact do performance upgrades have on the reliability of the BMW M4 CS?
Performance upgrades can make the BMW M4 CS better but can also stress parts more. To keep it reliable, use top-notch aftermarket parts. Regular maintenance and professional installation and tuning of upgrades are key.
How can I enhance the resale value of my custom BMW M4 CS?
To keep or boost the resale value of your custom BMW M4 CS, focus on quality and reputable modifications. Keep detailed records of all upgrades. Custom builds that improve performance, look, and function without sacrificing reliability are more appealing to buyers.
What insurance considerations should I keep in mind for a custom BMW M4 CS?
When insuring a custom BMW M4 CS, tell your insurance provider about all modifications. Custom cars might need special insurance policies. These should cover the increased value and risks from performance upgrades and unique parts.
Where can I find reliable resources and communities for building a BMW M4 CS?
Many online forums, social media groups, and communities share BMW M4 CS build experiences and tips. Websites like Bimmerforums, BMW Planet, and Facebook groups are great for advice, parts, and builder connections.
What are the most popular aftermarket brands for BMW M4 CS performance parts?
Top brands for BMW M4 CS performance parts include Dinellen for suspension, Brembo for brakes, APR and AMG for engine tuning, and CarbonArt for carbon fiber body panels. Choosing well-known brands ensures quality and compatibility with your build.
