Exhaust Pipe Peugeot 406 (1995-2004)

The exhaust pipe is a critical metal tube in a Peugeot 406's exhaust system that channels combustion gases from the exhaust manifold to the catalytic converter and silencer, safely directing them outside the car. It stabilizes pressure, reduces noise, dampens vibrations, aids in pollutant oxidation, and helps optimise engine performance by providing proper backpressure.

The exhaust system starts at the exhaust manifold connected to the engine head, collecting hot gases from engine valves and guiding them toward the rear of the vehicle. The gases flow through intermediate pipes, catalytic converter to filter emissions, and a silencer to reduce noise and stabilise pressure. Lambda sensors measure oxygen levels to adjust the air-fuel mix via the ECU. This system prevents harmful gases entering the cabin while optimising combustion and heat flow.

The key components of the exhaust system include:

• Exhaust manifold: collects gases from cylinders, reduces initial noise, and merges flows.
• Exhaust pipes: shaped tubes usually stainless steel or aluminium connecting all parts and resistant to corrosion and heat.
• Flexible pipe: metallic braid or corrugated tube absorbing vibrations between manifold and catalytic converter.
• Mounts and rubber parts: secure the system while damping vibrations and heat effects.

This design ensures durability, noise reduction, and efficient gas flow.

Peugeot 406 exhaust systems come in various configurations:

• Single pipe systems: basic design with one pipe for gas flow.
• Dual pipe systems: two pipes for improved flow, power, and torque.
• Multiple pipe systems: aesthetic or designed for multi-cylinder engines, sometimes with multiple catalytic converters.

Some models feature advanced filtration and catalytic systems meeting strict emissions regulations.

Exhaust pipes for Peugeot 406 are typically made of stainless steel (such as INOX 409), aluminium or steel alloys designed to withstand high temperatures (over 800°C), corrosion from acidic gases, and road vibrations. These materials offer longevity and performance reliability, making parts readily available as quality replacements without compromising vehicle safety or function.

Common problems include corrosion, holes, leaks causing excessive noise, unpleasant smells, power loss, or emission test failures. Vibrations may stem from worn flexible pipes or mounts. Maintenance tips:

• Regularly inspect visually for rust or holes.
• Listen for abnormal noises.
• Replace worn or damaged parts promptly.
• Keep catalytic converters clean and replace if clogged.

Proactive care ensures safety, performance, and regulatory compliance.

Choosing a high-quality exhaust pipe ensures optimal performance, durability, and compliance with emission standards. Quality pipes maintain proper backpressure, reduce noise, and resist corrosion and heat damage, preserving your car's engine efficiency and longevity. It also guarantees the safety of occupants by directing exhaust gases safely outside.

• Manufactured using certified stainless steel INOX 409.
• Designed to meet or exceed European regulations.
• Backed by a warranty for reliability.

Investing in a quality exhaust system safeguards your Peugeot 406's performance and environmental footprint.

Proper fitting and maintenance of your Peugeot 406 exhaust pipe involve careful handling and correct installation. Key practices include:

• Confirm compatibility with your exact car model, engine type, and Euro emission standard.
• Use quality mounting kits and gaskets for a tight seal and vibration damping.
• Schedule regular inspections for damage, corrosion, and sensor function checks (oxygen sensors for the ECU).
• Replace parts proactively to avoid failures impacting engine performance or emissions.
• Seek professional technical support when uncertain about installation or repairs.

Following these guidelines ensures secure operation, improved fuel efficiency, and compliance with environmental regulations.

For expert guidance, technical manuals, or support, contact the official supplier or authorised service centres.