This high-performance downpipe with catalytic converter was developed for the Audi A3/S3 8L and Audi TT Quattro 8N with a 1.8T engine. The combination of a 3" downpipe and a 200-cell metal catalytic converter significantly improves exhaust gas flow, accelerates turbocharger response, and enhances performance, while still featuring a catalytic converter. It's made of stainless steel and designed to connect to the standard turbocharger.

Advantages

• Improved exhaust gas flow compared to OEM
• Faster spool and better throttle response
• 200 cell high-flow metal catalyst
• Durable stainless steel
• Direct connection to standard turbo

Technical specifications

• Material: stainless steel
• Downpipe diameter: 3” / 76 mm
• Connection diameter connecting pipe: 2.5” / 63.5 mm
• Catalyst: 200 cell metal catalyst
• Lambda connection: yes, on the connecting pipe
• Includes: sealing set

Compatibility

• Audi A3 8L S3 Quattro 1.8T – 154 / 165 kW
Engine codes: BAM, AMK, AUL
• Audi TT 8N Quattro 1.8T – 165 / 176 kW
Engine codes: BAM, BFV

Please note: installation on Seat Leon 1M Cupra R requires adjustments.

Contents

• Stainless steel downpipe with catalyst
• Connecting pipe
• Sealing set

Frequently Asked Questions

Is this downpipe street legal?
This depends on local regulations and emission standards. Always check applicable laws.

Is software customization necessary?
Yes, for optimal performance and correct operation, ECU recalibration is recommended.

Will this downpipe fit without modifications?
This is a direct fit for the Audi A3 8L and TT 8N Quattro. Modifications are required for the Leon 1M Cupra R.

Is the lambda sensor included?
No, the connection is present but the sensor itself is reused from the original system.