This stainless steel decat downpipe was developed for the Audi S4 and S5 B9 with the 3.0 TFSI engine (354 hp). By removing the catalytic converter, exhaust gas flow is significantly improved, resulting in faster turbo response and a more aggressive sound. Only suitable for non-OPF models.

Advantages

• Maximum exhaust gas flow due to decat version
• Faster turbo response
• Sportier and louder exhaust sound
• High-quality stainless steel for durability
• Direct replacement of the OEM part

Technical specifications

• Material: stainless steel
• Type: decat downpipe
• Connection: 1 lambda probe connection
• Engine: 3.0 TFSI
• Power: only suitable for 354 hp version
• OPF: not suitable for OPF models

Compatibility

• Audi S4 - built 2016 to present
• Audi S5 - built 2016 to present

Contents

• Downpipe decat

Frequently Asked Questions

Is this downpipe street legal?
No, this is a decat downpipe without a catalytic converter and is not approved for use on public roads.

Is a software adjustment necessary?
Yes, an ECU modification is required to prevent error codes and achieve optimal results.

Does this downpipe fit OPF models?
No, this downpipe is only suitable for non-OPF versions.

Is this a direct mount?
Yes, the downpipe is designed as a direct replacement for the original downpipe.