Stainless steel downpipe for BMW M3 and M4 models with S55 engines. Designed to improve exhaust gas flow compared to the original system. The 3" diameter reduces restriction, offering greater performance potential and a more direct throttle response. Equipped with connections for a control and monitor lambda probe.

Advantages

• Improved exhaust gas flow
• More performance potential
• More direct throttle response
• High-quality stainless steel construction
• Connections for control and monitor lambda probe

Technical specifications

• Type: Downpipe
• Material: Stainless steel
• Diameter: 3"
• Lambda probe connections: control + monitor
• Mounting: bolt-on

Compatibility

• BMW 3-Series F80
– M3 Sedan
– Engine: S55
– Power: 317 kW

• BMW 4-Series F82 / F83
– M4 Coupe / Cabriolet
– Engine: S55
– Power: 317 – 368 kW

Contents

• Stainless steel downpipe

Frequently Asked Questions

Is this downpipe street legal?
This depends on local regulations and the design of the exhaust system. Always check this beforehand.

Can both lambda sensors be mounted?
Yes, the downpipe has connections for both control and monitor probes.

Is ECU tuning recommended?
Yes, an ECU modification is recommended for optimal operation and maximum performance.