BMW 550i 2017-present Exhaust Specifications
Comprehensive technical specifications for the 2017-Present BMW 550i exhaust system, including detailed information on components, materials, and performance standards.
Overview Specifications
Comprehensive description of the exhaust specifications for the 2017-Present BMW 550I, including key features, measurements, and technical details. This section provides detailed insights into the exhaust system's design, components, and performance specifications.
How to Use
Use the search function to locate specific exhaust specifications by entering keywords such as 'catalytic converter', 'muffler', or 'exhaust pipe diameter'.
Navigate through the exhaust documentation sections using the table of contents or by scrolling through the major sections and subsections.
Key Specifications
Exhaust Pipe Diameter
60 mm (primary), 70 mm (secondary)
Catalytic Converter Length
300 mm
Muffler Weight
12 kg
Exhaust System Back Pressure
0.5 bar at full load
Sound Attenuation (Muffler)
20 dB at 2000 RPM
Available Specifications
Exhaust System Overview
This section provides an overview of the exhaust system, including its components, materials, and design features.
Exhaust System Overview
This section provides an overview of the exhaust system, including its components, materials, and design features.
Exhaust System Components
- Dual exhaust system with quad tailpipes
- Stainless steel construction for durability
- Integrated catalytic converters for emissions control
- Resonator and muffler for noise reduction
- Exhaust flap system for dynamic sound control
Exhaust System Design
- Optimized for 4.4L V8 TwinPower Turbo engine
- Designed for maximum airflow efficiency
- Lightweight construction to reduce overall vehicle weight
- Heat-resistant materials to withstand high temperatures
Note: The exhaust system is engineered to enhance both performance and sound quality.
Exhaust Pipe Specifications
Detailed specifications for the exhaust pipes, including dimensions, materials, and performance characteristics.
Exhaust Pipe Specifications
Detailed specifications for the exhaust pipes, including dimensions, materials, and performance characteristics.
Primary Exhaust Pipes
- Diameter: 60 mm
- Material: Stainless steel
- Wall thickness: 1.5 mm
- Length: 1200 mm per side
- Designed for high-temperature resistance
Secondary Exhaust Pipes
- Diameter: 70 mm
- Material: Stainless steel
- Wall thickness: 1.5 mm
- Length: 800 mm per side
- Integrated with muffler and resonator
Catalytic Converter Specifications
Technical details and specifications for the catalytic converters, including materials, dimensions, and emissions performance.
Catalytic Converter Specifications
Technical details and specifications for the catalytic converters, including materials, dimensions, and emissions performance.
Catalytic Converter Design
- Material: Ceramic substrate with platinum coating
- Dimensions: 150 mm diameter, 300 mm length
- Emissions compliance: Euro 6 standards
- Heat resistance: Up to 900°C
- Integrated with oxygen sensors
Catalytic Converter Performance
- Reduction of CO emissions by 90%
- Reduction of NOx emissions by 85%
- Flow rate: 500 liters per minute
- Back pressure: 0.5 bar at full load
Note: The catalytic converter is designed for optimal performance under high-load conditions.
Muffler and Resonator Specifications
Specifications for the muffler and resonator, including dimensions, materials, and sound attenuation properties.
Muffler and Resonator Specifications
Specifications for the muffler and resonator, including dimensions, materials, and sound attenuation properties.
Muffler Design
- Material: Stainless steel with sound-absorbing insulation
- Dimensions: 400 mm x 300 mm x 200 mm
- Weight: 12 kg
- Sound attenuation: 20 dB at 2000 RPM
- Integrated exhaust flap for sound control
Resonator Design
- Material: Stainless steel
- Dimensions: 250 mm x 150 mm x 100 mm
- Weight: 5 kg
- Sound attenuation: 15 dB at 2000 RPM
- Optimized for low-frequency noise reduction
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Component Specifications
General Specifications
- System Type
- Twin-pipe exhaust system with dual tailpipes
- Material
- Stainless steel
- Emission Standard
- Euro 6 compliant
- Part Number
- 18307609612
- Weight
- 22.5 kg
Exhaust Manifold
- Material
- Cast iron with heat-resistant coating
- Part Number
- 11627586945
- Bolt Torque
- 25 Nm
- Gasket Material
- Graphite
- Gasket Part Number
- 11627586946
Catalytic Converter
- Type
- Dual catalytic converters
- Material
- Ceramic substrate with platinum-rhodium coating
- Part Number
- 18307553879
- Operating Temperature
- 400-800 °C
- Efficiency
- >95%
- Replacement interval
- 120,000 miles
Resonator
- Type
- Center-mounted resonator
- Material
- Stainless steel
- Part Number
- 18307609613
- Dimensions
- 600 mm x 200 mm x 150 mm
- Weight
- 4.2 kg
Muffler
- Type
- Dual-chamber muffler
- Material
- Stainless steel with sound-absorbing fiber
- Part Number
- 18307609614
- Dimensions
- 800 mm x 300 mm x 200 mm
- Weight
- 8.5 kg
- Noise Level
- <75 dB at 3000 RPM
Tailpipes
- Material
- Polished stainless steel
- Diameter
- 90 mm
- Part Number
- 18307609615
- Finish
- Chrome-plated
- Alignment Tolerance
- ±2 mm
Oxygen Sensors
- Type
- Wideband zirconia sensors
- Part Number
- 11787586947
- Location
-
- Pre-catalytic converter
- Post-catalytic converter
- Operating Temperature
- -40 to 900 °C
- Replacement interval
- 100,000 miles
Exhaust Clamps
- Material
- Stainless steel
- Part Number
- 18307609616
- Bolt Torque
- 15 Nm
- Gasket Material
- Graphite
- Gasket Part Number
- 18307609617
Heat Shields
- Material
- Aluminum with heat-resistant coating
- Part Number
- 18307609618
- Thickness
- 1.5 mm
- Mounting Bolt Torque
- 10 Nm
Operational Parameters
- Max Exhaust Gas Temperature
- 950 °C
- Back Pressure Limit
- 0.3 bar
- Flow Rate
- 450 CFM at 6000 RPM
- Vibration Tolerance
- ±0.5 mm
Service Information Service
Detailed service requirements and schedules for the exhaust system
- Inspect exhaust system for leaks and damage
- Check oxygen sensor functionality
- Verify catalytic converter efficiency
Use BMW-approved diagnostic tools for sensor checks
- Replace exhaust gaskets and clamps if necessary
- Inspect heat shields for corrosion and damage
- Check resonator and muffler for internal damage
Ensure all bolts are torqued to manufacturer specifications
- Replace oxygen sensors
- Inspect catalytic converter for clogging or damage
- Check exhaust manifold for cracks
Replace catalytic converter if efficiency drops below 90%
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the exhaust system configuration for the 2017-Present BMW 550i?
What is the exhaust system configuration for the 2017-Present BMW 550i?
The 2017-Present BMW 550i features a dual exhaust system with two tailpipes, each measuring 90mm in diameter. The system includes a catalytic converter, resonator, and muffler, designed to optimize exhaust flow and reduce backpressure for the 4.4L V8 TwinPower Turbo engine.
Q2 What material is used in the BMW 550i exhaust system?
What material is used in the BMW 550i exhaust system?
The exhaust system is constructed from high-quality stainless steel, providing durability and resistance to corrosion. The tailpipes are chrome-plated for a premium finish, while the internal components are designed to withstand high temperatures and harsh operating conditions.
Q3 What is the backpressure specification for the BMW 550i exhaust system?
What is the backpressure specification for the BMW 550i exhaust system?
The backpressure specification for the BMW 550i exhaust system is designed to be below 0.5 bar (7.25 psi) under normal operating conditions. This ensures optimal engine performance and fuel efficiency while maintaining compliance with emissions standards.
Q4 Can aftermarket exhaust systems affect the BMW 550i's warranty?
Can aftermarket exhaust systems affect the BMW 550i's warranty?
Yes, installing an aftermarket exhaust system may void certain aspects of the BMW 550i's warranty, particularly if the modification causes damage to the engine or emissions system. Always consult your BMW dealership or warranty documentation before making modifications.
Q5 What are the emissions standards for the BMW 550i exhaust system?
What are the emissions standards for the BMW 550i exhaust system?
The BMW 550i exhaust system complies with Euro 6 and U.S. EPA Tier 3 emissions standards. It includes advanced catalytic converters and oxygen sensors to minimize harmful emissions, such as CO, NOx, and hydrocarbons.
Q6 How often should the exhaust system be inspected?
How often should the exhaust system be inspected?
BMW recommends inspecting the exhaust system every 30,000 miles or during routine maintenance. Look for signs of corrosion, leaks, or damage to the catalytic converter, muffler, and piping. Regular inspections ensure optimal performance and compliance with emissions regulations.
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 550i Exhaust System Maintenance Guide
Coming SoonA detailed guide on maintaining the exhaust system, including inspection intervals, common issues, and repair procedures.
Genuine BMW Exhaust Parts Catalog
Coming SoonAccess the official catalog of genuine BMW exhaust components, including part numbers and compatibility information for the 550i.
BMW 550i Emissions Compliance Documentation
Coming SoonTechnical documentation outlining the emissions standards and compliance measures for the BMW 550i exhaust system.
Exhaust System Safety and Installation Guidelines
Coming SoonSafety precautions and step-by-step installation instructions for the BMW 550i exhaust system, including torque specifications and alignment procedures.
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