This decat downpipe is designed for the Audi A3/S3 8L and Audi TT Quattro 8N with a 1.8T engine. Removing the catalytic converter creates much freer exhaust gas flow, resulting in faster turbo response and increased power potential. The downpipe is made of high-quality stainless steel and connects directly to the standard turbocharger.

Advantages

• Significantly improved exhaust gas flow
• Faster spool and sharper throttle response
• Fully stainless steel for long life
• Direct connection to standard turbo
• Ideal for performance and track use

Technical specifications

• Material: stainless steel
• Type: decat downpipe
• Downpipe diameter: 3” / 76 mm
• Exhaust connecting pipe diameter: 2.5” / 63.5 mm
• Connection: standard turbo
• Includes sealing set

Compatibility

• Audi A3 8L S3 Quattro 1.8T
• Audi TT 8N Quattro 1.8T

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

Contents

• Stainless steel decat downpipe
• Sealing set

Frequently Asked Questions

Is this downpipe allowed on public roads?
No, a decat downpipe is not permitted for use on public roads in most countries. Always check local regulations.

Is a software adjustment necessary?
Yes, ECU recalibration is highly recommended to prevent error codes and achieve maximum results.

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.

Does this downpipe produce more sound?
Yes, due to the absence of the catalytic converter the exhaust note becomes noticeably louder and more aggressive.