BMW M2 2016-2021 Exhaust Specifications
Explore detailed technical specifications and maintenance guidelines for the 2016-2021 BMW M2 exhaust system, including components like the exhaust manifold, catalytic converter, muffler, and tailpipes.
Overview Specifications
Comprehensive description of the exhaust specifications for the 2016-2021 BMW M2, including key features, measurements, and technical details. This section provides detailed insights into the exhaust system's design, components, and performance characteristics.
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Use the search function to locate specific exhaust specifications by entering keywords such as 'catalytic converter,' 'muffler,' or 'exhaust 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 (2.36 in)
Maximum Backpressure
0.8 bar (11.6 psi)
Exhaust Gas Flow Rate
450 liters/second
Idle Sound Level
85 dB
Catalytic Converter Lifespan
160,000 km (99,419 mi)
Available Specifications
Exhaust System Overview
This section provides an overview of the BMW M2's exhaust system, including its design, materials, and key components.
Exhaust System Overview
This section provides an overview of the BMW M2's exhaust system, including its design, materials, and key components.
Exhaust System Design
- Twin-pipe exhaust system with dual tailpipes
- Stainless steel construction for durability and corrosion resistance
- Optimized for performance and sound tuning
- Integrated valve system for adjustable exhaust note
Key Components
- Primary catalytic converters integrated into the exhaust manifold
- Secondary catalytic converters located downstream
- Resonator and muffler for sound attenuation
- Exhaust tips with chrome finish for aesthetic appeal
Note: The exhaust valve system is electronically controlled and adjusts based on driving mode.
Exhaust Dimensions and Measurements
This section details the physical dimensions and measurements of the exhaust system components.
Exhaust Dimensions and Measurements
This section details the physical dimensions and measurements of the exhaust system components.
Exhaust Pipe Diameter
- Primary exhaust pipes: 60 mm (2.36 in)
- Secondary exhaust pipes: 70 mm (2.76 in)
- Tailpipe diameter: 90 mm (3.54 in)
- Wall thickness: 1.5 mm (0.06 in)
Exhaust System Length
- Total exhaust system length: 2,800 mm (110.24 in)
- Distance between catalytic converters: 600 mm (23.62 in)
- Muffler length: 500 mm (19.69 in)
- Resonator length: 300 mm (11.81 in)
Note: Measurements are approximate and may vary slightly due to manufacturing tolerances.
Performance Specifications
This section covers the performance-related specifications of the exhaust system, including backpressure and flow rates.
Performance Specifications
This section covers the performance-related specifications of the exhaust system, including backpressure and flow rates.
Backpressure and Flow
- Maximum backpressure: 0.8 bar (11.6 psi)
- Exhaust gas flow rate: 450 liters/second
- Optimized for minimal restriction and maximum power output
- Valve system reduces backpressure in Sport and Sport+ modes
Sound Levels
- Idle sound level: 85 dB
- Full throttle sound level: 105 dB
- Valve system enhances exhaust note in Sport mode
- Complies with EU noise regulations
Note: Sound levels measured at 1 meter from the exhaust tip.
Maintenance and Service
This section provides information on maintaining and servicing the exhaust system.
Maintenance and Service
This section provides information on maintaining and servicing the exhaust system.
Inspection Intervals
- Inspect exhaust system every 30,000 km (18,641 mi)
- Check for leaks, corrosion, and damage
- Verify valve system functionality
- Replace gaskets and seals as needed
Replacement Parts
- Catalytic converter replacement interval: 160,000 km (99,419 mi)
- Muffler and resonator lifespan: 10 years or 200,000 km (124,274 mi)
- Use only OEM or approved aftermarket parts
- Torque specifications for exhaust clamps: 25 Nm (18.4 lb-ft)
Note: Regular inspection and maintenance are critical to ensure optimal performance and longevity.
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Component Specifications
General Specifications
- Material
- Stainless steel
- System Type
- Dual exhaust with dual tailpipes
- Emission Compliance
- Euro 6 / Tier 3
- Part Number
- 18307608950
- Weight
- 22.5 kg
Exhaust Manifold
- Material
- Cast iron
- Heat Shield Material
- Aluminized steel
- Bolt Torque Spec
- 25 Nm
- Gasket Part Number
- 11627838085
- Connection Type
- Flanged
Catalytic Converter
- Type
- Three-way catalytic converter
- Material
- Ceramic substrate with platinum-palladium-rhodium coating
- Part Number
- 18307561779
- Efficiency
- > 95%
- Operating Temperature
- 400-800 °C
- Replacement interval
- 120,000 miles
Resonator
- Material
- Stainless steel
- Part Number
- 18307608951
- Diameter
- 76 mm
- Length
- 450 mm
- Function
- Reduces exhaust noise and drone
Muffler
- Material
- Stainless steel
- Part Number
- 18307608952
- Diameter
- 89 mm
- Length
- 600 mm
- Noise Reduction
- 20 dB
- Tailpipe Diameter
- 90 mm
Oxygen Sensors
- Upstream Sensor Part Number
- 11787558025
- Downstream Sensor Part Number
- 11787558026
- Operating Temperature
- -40 to 900 °C
- Voltage Range
- 0.1-0.9 V
- Replacement interval
- 100,000 miles
Exhaust Pipes
- Material
- Stainless steel
- Diameter
- 70 mm
- Wall Thickness
- 1.5 mm
- Flex Pipe Part Number
- 18307608953
- Clamp Part Number
- 18307608954
Exhaust Valve Control
- Valve Type
- Electronically controlled flap
- Part Number
- 18307608955
- Actuator Part Number
- 18307608956
- Operating Temperature
- -40 to 150 °C
- Control Signal
- PWM 12V
Thermal Management
- Heat Shield Material
- Aluminized steel
- insulation Type
- Fiberglass wrap
- Maximum Surface Temperature
- 200 °C
- Heat Shield Part Number
- 18307608957
Diagnostic Specifications
- Error Codes
-
- P0420
- P0430
- P0135
- P0141
- Diagnostic Tool
- BMW ISTA
- Sensor Resistance Range
- 5-20 ohms
- Exhaust Backpressure Limit
- 0.5 bar
Service Information Service
Detailed service requirements and schedules for the exhaust system
- Inspect exhaust system for leaks and damage
- Check oxygen sensor functionality
- Inspect catalytic converter for efficiency
Visual and functional inspection required
- Replace oxygen sensors if necessary
- Inspect and tighten all exhaust clamps
- Check exhaust valve operation
Use BMW-approved parts for replacements
- Replace catalytic converter if efficiency is below 90%
- Inspect and replace exhaust gaskets
- Check resonator and muffler for corrosion
Full system inspection recommended
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the exhaust system configuration for the 2016-2021 BMW M2?
What is the exhaust system configuration for the 2016-2021 BMW M2?
The 2016-2021 BMW M2 features a dual exhaust system with two tailpipes, each measuring 90mm in diameter. The system includes a stainless steel muffler and a dual-branch exhaust manifold designed for optimal performance and sound.
Q2 What is the material used in the BMW M2 exhaust system?
What is the material used in the BMW M2 exhaust system?
The exhaust system is constructed from high-quality stainless steel, which provides durability, corrosion resistance, and heat tolerance. The muffler and tailpipes are also coated to enhance longevity and maintain a polished appearance.
Q3 Does the BMW M2 exhaust system include a valve-controlled exhaust?
Does the BMW M2 exhaust system include a valve-controlled exhaust?
Yes, the BMW M2 is equipped with an electronically controlled exhaust flap system. This system adjusts the exhaust note based on driving conditions and the selected driving mode, providing a sportier sound during aggressive driving and a quieter tone during normal operation.
Q4 What is the backpressure specification for the BMW M2 exhaust system?
What is the backpressure specification for the BMW M2 exhaust system?
The backpressure for the BMW M2 exhaust system is optimized to balance performance and emissions. It typically ranges between 0.8 and 1.2 psi under normal operating conditions, ensuring efficient exhaust gas flow and engine performance.
Q5 Can aftermarket exhaust systems affect the BMW M2's warranty?
Can aftermarket exhaust systems affect the BMW M2's warranty?
Installing an aftermarket exhaust system may void certain aspects of the BMW M2's warranty, particularly if the modification causes damage to the engine or emissions system. It is recommended to consult with an authorized BMW dealer before making any modifications.
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 M2 Exhaust System Technical Guide
Coming SoonA detailed guide covering the design, specifications, and maintenance of the BMW M2 exhaust system.
BMW M2 Exhaust Valve Control System Overview
Coming SoonLearn about the electronically controlled exhaust flap system and its operation in the BMW M2.
BMW M2 Exhaust Maintenance Best Practices
Coming SoonTips and procedures for maintaining the BMW M2 exhaust system to ensure longevity and performance.
BMW M2 Exhaust System Warranty Information
Coming SoonUnderstand the warranty implications of modifying or replacing the BMW M2 exhaust system.
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