BMW 640i 2018-present Exhaust Specifications
Detailed technical specifications for the 2018-Present BMW 640i exhaust system, including component details and performance metrics.
Exhaust System Overview Specifications
This document provides a comprehensive guide to the exhaust specifications of the 2018-Present BMW 640i. It includes detailed information about the exhaust system's design, components, performance, and maintenance. Users can navigate through the sections to find specific details or use the quick reference section for key specifications. The document is designed to assist technicians, enthusiasts, and owners in understanding and maintaining the vehicle's exhaust system.
How to Use
To search for specific information, use the search functionality by typing keywords related to the exhaust system, such as 'muffler', 'pipes', or 'performance'. Results will highlight relevant sections.
Navigate through the document by selecting sections from the table of contents. Each section provides detailed subsections with technical specifications and descriptions. Use the quick reference section for fast access to key specifications.
Key Specifications
Exhaust System Type
Dual-pipe stainless steel
Pipe Diameter
76mm
Muffler Configuration
Twin-pipe with valves
Weight Reduction
5kg reduction
Sound Level
80 dB
Available Specifications
Exhaust System Design
This section outlines the overall design and layout of the exhaust system, including key components and their functionality. It provides insights into how the system is configured for optimal performance and sound.
Exhaust System Design
This section outlines the overall design and layout of the exhaust system, including key components and their functionality. It provides insights into how the system is configured for optimal performance and sound.
System Layout
- Dual-pipe exhaust system with rear mufflers
- Stainless steel construction for durability
- Integrated exhaust valves for sound control
- Symmetrical design for aesthetic appeal
- Optimized pipe diameter for performance
- Weight reduction compared to previous models
Muffler Design
- Twin-pipe muffler configuration
- Internal chambers for sound damping
- Flow-optimized exhaust channels
- Heat-resistant materials for longevity
- Adjustable exhaust valve system
- Muffler weight reduction technology
Exhaust Components
This section details the individual components of the exhaust system, including materials, dimensions, and technical specifications. It provides a closer look at each part's role in the system's performance.
Exhaust Components
This section details the individual components of the exhaust system, including materials, dimensions, and technical specifications. It provides a closer look at each part's role in the system's performance.
Exhaust Pipes
- 76mm pipe diameter for increased flow
- Stainless steel construction with thickness of 1.5mm
- Mandrel-bent pipes for smooth flow
- Welded joints for strength and durability
- Heat-shielded sections for temperature control
- Weight reduction compared to stock systems
Catalytic Converters
- High-flow catalytic converters
- Made from premium ceramic materials
- Integrated into the downpipe system
- Efficient emission control
- Durable construction for long lifespan
- Engineered for minimal backpressure
Performance and Sound
This section focuses on the performance enhancements and sound characteristics of the exhaust system. It explains how the system is tuned for optimal power delivery and acoustic output.
Performance and Sound
This section focuses on the performance enhancements and sound characteristics of the exhaust system. It explains how the system is tuned for optimal power delivery and acoustic output.
Performance Features
- Increased horsepower and torque output
- Reduced backpressure for better engine efficiency
- Optimized flow for maximum performance
- Weight reduction for improved power-to-weight ratio
- Engineered for a sporty exhaust note
- Minimal restriction in the exhaust path
Sound Characteristics
- Deep, sporty exhaust tone
- Adjustable sound levels via exhaust valves
- Reduced drone at cruising speeds
- Aggressive sound during acceleration
- Smooth sound transitions
- Customizable sound profiles
Maintenance and Service
This section provides guidelines for maintaining and servicing the exhaust system. It includes tips for inspection, cleaning, and replacing components to ensure optimal performance and longevity.
Maintenance and Service
This section provides guidelines for maintaining and servicing the exhaust system. It includes tips for inspection, cleaning, and replacing components to ensure optimal performance and longevity.
Inspection and Cleaning
- Regular inspection for damage or leaks
- Cleaning of exhaust tips to prevent corrosion
- Checking exhaust valve functionality
- Inspecting pipe and muffler condition
- Cleaning of catalytic converters
- Replacing worn-out gaskets and seals
Replacement and Upgrades
- Replacing damaged or corroded pipes
- Upgrading to high-performance mufflers
- Installing aftermarket catalytic converters
- Upgrading exhaust tips for enhanced appearance
- Replacing faulty exhaust valves
- Installing sound-reducing insulation
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Component Specifications
Overview
- Type
- Dual Exhaust System
- Configuration
- Dual Round Tips
- Platform
- G32
- Material
- Stainless Steel
- Location
- Rear Center
- Emissions Standard
- EU6d-Temp
Dimensions
- System Length
- 7.5 ft (2.29 m)
- Pipe Diameter
- 2.5 in (6.35 cm)
- Tip Diameter
- 3.5 x 1.5 in (8.89 x 3.81 cm)
- Muffler Size
- 24.0 x 8.0 x 8.0 in (61.0 x 20.3 x 20.3 cm)
- Catalytic Converter Size
- 19.7 x 5.9 x 5.9 in (50.0 x 15.0 x 15.0 cm)
- Exhaust Tip Thickness
- 0.08 in (2.0 mm)
- System Weight
- Approx. 44.0 lbs (20.0 kg)
Materials
- Main Pipes
- Stainless Steel (Grade 304)
- Mufflers
- Stainless Steel with Fiberglass Insulation
- Catalytic Converters
- Ceramic Coated Stainless Steel
- Exhaust Tips
- Chrome-Plated Stainless Steel
- Heat Shield
- High-Temperature Steel
Features
- Performance Optimization
-
- Optimized Backpressure Reduction
- Improved Engine Performance
- Enhanced Low-End Torque
- Reduced Turbo Lag
- Noise Reduction
-
- Acoustic Damping Technology
- Frequency-Tuned Mufflers
- Vibration Isolation Mounts
- Aesthetics
-
- Polished Chrome Tips
- Exhaust System Heat Shield
- Visually Appealing Welds
- Durability
-
- Corrosion-Resistant Coatings
- High-Temperature Materials
- Reinforced Joints
- Emissions Control
-
- Catalytic Converter Efficiency
- Particulate Filter Integration
- EU6d-Temp Compliance
- Thermal Management
-
- Heat Shield Protection
- Thermal Insulation
- Temperature-Resistant Materials
Safety Features
- Heat Protection
-
- Heat Shields for Undercarriage
- Thermal Insulation of Exhaust Components
- Fire-Resistant Materials
- Leak Detection
-
- Integrated Exhaust Gas Sensors
- Pressure Monitoring System
- Visual Inspection Points
- Structural integrity
-
- Robust Welded Joints
- Reinforced Mounting Points
- Fail-Safe Design
Comfort Features
- Noise Reduction
-
- Acoustic Damping Materials
- Frequency-Tuned Mufflers
- Vibration Isolation
- Smooth Operation
-
- Linear Exhaust Flow Design
- Smooth Bends and Joints
- Minimized Restriction
- Thermal Comfort
-
- Heat Shielding
- Thermal Insulation
- Reduced Heat Emission
Accessories
- Performance Upgrades
-
- High-Flow Catalytic Converters
- Sport Mufflers
- Lightweight Exhaust Systems
- Styling Enhancements
-
- Carbon Fiber Tips
- Polished Chrome Tips
- Exhaust Tip Trim
- installation Kits
-
- Exhaust Gasket Set
- Mounting Hardware Kit
- Heat Shield Clips
Maintenance
- Service interval
- Every 15,000 miles or 5 years
- Service Items
-
- Exhaust System Inspection
- Muffler and Catalytic Converter Check
- Exhaust Pipe Cleaning
- Heat Shield Inspection
- Exhaust Tip Polishing
- Maintenance Notes
- Regular inspection recommended to ensure system integrity and performance.
Warranty
- New Vehicle Warranty
- Miles: 50,000 milesYears: 4 yearsCoverage: Full Coverage
- Components Warranty
- Miles: 70,000 milesYears: 7 yearsCoverage: Catalytic Converter and Exhaust System Components
- Corrosion Warranty
- Miles: Unlimited milesYears: 12 yearsCoverage: Perforation of Exhaust Components
- Accessory Warranty
- Miles: 50,000 milesYears: 4 yearsCoverage: Accessories and Upgraded Components
Production Details
- Manufacturer
- BMW Group
- Manufacturing Process
-
- Robotic Welding
- Laser Cutting
- High-Temperature Brazing
- Catalytic Converter Coating Process
- Quality Control
- inspection Points: Weld Integrity, Material Thickness, Surface Finish, Dimensional AccuracyTesting Procedures: Leak Testing, Acoustic Testing, Thermal Cycling, Vibration Testing
- Sustainability Practices
-
- Recyclable Materials
- Low-Emission Manufacturing
- Energy-Efficient Processes
- Production Metrics
- Annual Production: Over 50,000 unitsManufacturing Lead Time: 6-8 weeksQuality Rating: ISO 9001 Certified
Service Information for Exhaust System Service
Maintenance and service requirements specific to the exhaust system of the 2018-Present BMW 640i
- Exhaust System Inspection
- Muffler and Catalytic Converter Check
- Exhaust Pipe Cleaning
- Heat Shield Inspection
- Exhaust Tip Polishing
Visual inspection for damage, leaks, or corrosion.
- Exhaust System Tightening
- Muffler Gasket Replacement
- Catalytic Converter Efficiency Test
- Exhaust Pipe Cleaning
- Heat Shield Reattachment
Recommended to perform during routine vehicle maintenance.
- Exhaust System Overhaul
- Muffler Replacement
- Catalytic Converter Replacement
- Exhaust Pipe Replacement
- Heat Shield Replacement
Critical service interval for maintaining system performance and emissions compliance.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the exhaust system for the 2018-Present BMW 640i?
What are the technical specifications of the exhaust system for the 2018-Present BMW 640i?
The 2018-Present BMW 640i features a twin-scroll turbocharged 3.0L inline-6 engine, producing 335 horsepower and 369 lb-ft of torque. The exhaust system includes a dual exhaust setup with chrome-plated tailpipes. It is compatible with the N63B44T3 engine and is designed to meet Euro 6 emissions standards. The exhaust system is constructed from high-grade stainless steel for durability and corrosion resistance.
Q2 What are the maintenance requirements for the exhaust system?
What are the maintenance requirements for the exhaust system?
Regular maintenance for the BMW 640i exhaust system includes inspections every 5,000 miles for signs of damage, corrosion, or leaks. The exhaust system should be checked for proper tightening of all connections and mounts. It is recommended to replace the exhaust gaskets and hangers every 30,000 miles. Additionally, cleaning the exhaust system every 15,000 miles can help prevent buildup and maintain performance.
Q3 How do I install or replace the exhaust system?
How do I install or replace the exhaust system?
To install or replace the exhaust system on your BMW 640i, start by lifting the vehicle and removing the undercarriage covers. Disconnect the oxygen sensors and exhaust hangers. Remove the mounting bolts and carefully lower the exhaust system. Install the new system by reversing the steps, ensuring all connections are secure and properly aligned. Tighten all bolts and reconnect the oxygen sensors. Test the system for leaks and proper function.
Q4 How do I troubleshoot common issues with the exhaust system?
How do I troubleshoot common issues with the exhaust system?
Common issues with the BMW 640i exhaust system include leaks, rattling noises, and reduced performance. To diagnose, inspect the system for visible cracks or holes. Use an OBD-II scanner to check for fault codes related to the exhaust system. Listen for unusual noises during operation. If a leak is found, tighten or replace the affected gasket or connection. For rattling noises, inspect the heat shields and exhaust hangers for damage or wear.
Q5 How can I optimize the performance of the exhaust system?
How can I optimize the performance of the exhaust system?
To optimize the performance of the BMW 640i exhaust system, consider upgrading to a high-flow aftermarket exhaust system with larger diameter pipes and high-performance catalytic converters. Ensure proper tuning and calibration of the engine management system to complement the exhaust upgrades. Regular cleaning and maintenance can also help maintain optimal performance. Additionally, using high-quality fuels and avoiding aggressive driving can reduce wear and tear on the system.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
BMW 640i Service Manual
Coming SoonComprehensive service manual detailing maintenance, repair, and technical specifications for the 2018-Present BMW 640i.
Technical Service Bulletin (TSB) - Exhaust System Updates
Coming SoonOfficial technical bulletin from BMW detailing updates and improvements for the exhaust system of the 2018-Present BMW 640i.
BMW Parts Catalog - Exhaust System Components
Coming SoonOfficial parts catalog providing detailed information on exhaust system components, part numbers, and ordering information for the 2018-Present BMW 640i.
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.