BMW M3 2007-2013

BMW M3 2007-2013 Exhaust Specifications

Comprehensive technical documentation for the exhaust system of the 2007-2013 BMW M3, including detailed specifications, maintenance guidelines, and performance insights.

Updated Oct 14, 2023

Overview Specifications

Comprehensive description of the exhaust specifications for the 2007-2013 BMW M3, including key features, measurements, and technical details. This section covers the exhaust system's design, materials, performance characteristics, and maintenance requirements.

How to Use

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 Diameter

2.5 inches (63.5 mm)

Backpressure

< 1.5 psi at 6000 RPM

Sound Level

85 dB at 3000 RPM

Catalytic Converter Lifespan

150,000 miles (240,000 km)

Oxygen Sensor Replacement

100,000 miles (160,000 km)

Available Specifications

Exhaust System Design

Details about the design and layout of the exhaust system, including component placement and integration with the vehicle's chassis.

Exhaust Layout

Dual exhaust system with quad tailpipes
Stainless steel construction for durability
Optimized for minimal backpressure
Integrated with the vehicle's underbody for aerodynamic efficiency

Component Integration

Primary and secondary catalytic converters
Resonators and mufflers for noise reduction
Oxygen sensors integrated into the exhaust stream
Heat shields to protect surrounding components

Note: The exhaust system is designed to meet strict emissions standards while maintaining performance.

Exhaust Materials and Construction

Information about the materials used in the exhaust system and their construction methods.

Material Specifications

High-grade stainless steel for corrosion resistance
T304 stainless steel for the muffler and tailpipes
Aluminized steel for heat shields
Ceramic-coated components for thermal management

Construction Techniques

Mandrel-bent tubing for smooth airflow
TIG welding for precision and strength
Laser-cut flanges for precise fitment
Robotic assembly for consistent quality

Performance Specifications

Technical details about the exhaust system's performance, including flow rates, backpressure, and sound levels.

Flow and Backpressure

Exhaust diameter: 2.5 inches (63.5 mm)
Backpressure: < 1.5 psi at 6000 RPM
Flow rate: 450 CFM at full throttle
Optimized for high-revving S65 V8 engine

Sound Characteristics

Sound level: 85 dB at 3000 RPM
Tuned for a sporty, aggressive exhaust note
Resonators reduce drone at cruising speeds
Mufflers designed for minimal restriction

Note: The exhaust note is engineered to enhance the driving experience without exceeding legal noise limits.

Maintenance and Service

Guidelines for maintaining and servicing the exhaust system, including inspection intervals and replacement parts.

Inspection Intervals

Inspect exhaust system every 15,000 miles (24,000 km)
Check for leaks, cracks, and corrosion
Verify oxygen sensor functionality
Inspect heat shields for damage

Replacement Parts

Oxygen sensor replacement interval: 100,000 miles (160,000 km)
Catalytic converter lifespan: 150,000 miles (240,000 km)
Muffler and resonator replacement as needed
Use only OEM or approved aftermarket parts

Search Specifications

Search by specification name, value, or description

Component Specifications

General information

Vehicle Model: 2007-2013 BMW M3 (E90/E92/E93)

Engine Type: S65B40 4.0L V8

Exhaust Type: Dual exhaust system with quad tips

Material: Stainless steel

Emission Compliance: Euro 5 and EPA Tier 2 Bin 5

Exhaust Manifold

Part Number: 11627837984

Material: Cast iron

Bolt Torque: 23 Nm (17 lb-ft)

Gasket Part Number: 11627837985

Heat Shield Material: Aluminized steel

Catalytic Converters

Part Number: 18307585273

Type: Two-way catalytic converter

Substrate Material: Ceramic

Precious Metals

Platinum
Palladium

Operating Temperature: 400-800°C (752-1472°F)

Efficiency: >95%

Mid Pipe

Part Number: 18307585274

Diameter: 70 mm (2.75 in)

Material: Stainless steel

Resonator included: true

Resonator Part Number: 18307585275

Muffler

Part Number: 18307585276

Type: Dual-chamber perforated core

Material: Stainless steel

Tip Diameter: 90 mm (3.54 in)

Tip Material: Chrome-plated stainless steel

Exhaust Flanges

Part Number: 18307585277

Material: Stainless steel

Bolt Torque: 25 Nm (18 lb-ft)

Gasket Part Number: 18307585278

Oxygen Sensors

Pre Cat Sensor Part Number: 11787558025

Post Cat Sensor Part Number: 11787558026

Operating Voltage: 12V

Operating Temperature: -40°C to 900°C (-40°F to 1652°F)

Response Time: <100 ms

Exhaust Mounts

Rubber Mount Part Number: 18307585279

Material: Heat-resistant rubber

Bolt Torque: 20 Nm (15 lb-ft)

Quantity: 4

Exhaust Tips

Part Number: 18307585280

Material: Chrome-plated stainless steel

Diameter: 90 mm (3.54 in)

Length: 150 mm (5.91 in)

installation Torque: 15 Nm (11 lb-ft)

Operational Parameters

Max Exhaust Gas Temperature: 950°C (1742°F)

Back Pressure Limit: 0.3 bar (4.35 psi)

Flow Rate: 450 CFM (cubic feet per minute)

Noise Level: 87 dB(A) at 3000 RPM

Maintenance

inspection Interval: Every 30,000 miles or 24 months

Cleaning Interval: Every 15,000 miles or 12 months

Torque Check interval: Every 60,000 miles or 48 months

Gasket Replacement interval: Every 100,000 miles or 84 months

Diagnostics

Common Fault Codes

P0420
P0430
P0135
P0141

Diagnostic Tool: BMW ISTA/D

Sensor Test Voltage: 0.1V to 0.9V

Back Pressure Test Limit: 0.3 bar (4.35 psi)

Service Information Service

Detailed service requirements and schedules for the exhaust system

15,000 miles

12 months

Inspect exhaust system for leaks
Check oxygen sensor functionality
Clean exhaust tips

Ensure all bolts are torqued to specification

30,000 miles

24 months

Inspect catalytic converters for damage
Check exhaust mounts for wear
Verify back pressure levels

Replace gaskets if signs of leakage are present

60,000 miles

48 months

Torque check all exhaust flanges
Inspect mid-pipe resonator
Replace oxygen sensors if necessary

Use OEM parts for replacements

100,000 miles

84 months

Replace exhaust manifold gasket
Inspect and clean catalytic converters
Check exhaust system alignment

Perform a full diagnostic scan using BMW ISTA/D

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the diameter of the exhaust pipes on the 2007-2013 BMW M3?

The 2007-2013 BMW M3 features dual exhaust pipes with a diameter of 65 mm (2.56 inches) each. This design ensures optimal exhaust flow and performance for the high-revving S65 V8 engine.

What material is used for the exhaust system on the 2007-2013 BMW M3?

The exhaust system is constructed from high-quality stainless steel, which provides excellent durability and resistance to corrosion. The muffler and resonators are also designed with lightweight materials to reduce overall vehicle weight.

Does the 2007-2013 BMW M3 exhaust system include a catalytic converter?

Yes, the exhaust system includes two high-flow catalytic converters, one for each bank of the V8 engine. These converters are designed to meet strict emissions standards while maintaining optimal engine performance.

What is the recommended service interval for the exhaust system on the 2007-2013 BMW M3?

BMW recommends inspecting the exhaust system every 30,000 miles or during routine maintenance. Look for signs of corrosion, leaks, or damage to the hangers and mounts. Replacement of components like gaskets or clamps may be necessary over time.

Can aftermarket exhaust systems affect the performance of the 2007-2013 BMW M3?

Yes, aftermarket exhaust systems can impact performance. High-quality systems may improve exhaust flow and reduce backpressure, potentially increasing horsepower and torque. However, improper installation or low-quality systems can lead to performance issues, increased noise, or even damage to the engine.

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 M3 Exhaust System Technical Guide

Coming Soon

A detailed guide covering the design, components, and maintenance of the 2007-2013 BMW M3 exhaust system.

Exhaust System Maintenance Tips

Coming Soon

Learn how to properly inspect and maintain your BMW M3 exhaust system to ensure longevity and performance.

Genuine BMW Exhaust Parts Catalog

Coming Soon

Access the official catalog of genuine BMW exhaust components for the 2007-2013 M3, including gaskets, clamps, and mufflers.

Performance Exhaust Upgrades for BMW M3

Coming Soon

Explore performance exhaust options and their impact on the 2007-2013 BMW M3, including dyno results and installation tips.

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