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The Audi RS6 C8 is one of the most powerful and versatile performance wagons on the market. Combining a twin-turbocharged V8 engine with Audi’s legendary Quattro all-wheel drive system, it delivers breathtaking acceleration and handling. However, many enthusiasts seek to unlock even more performance and sound by upgrading the exhaust system with aftermarket Audi RS6 C8 downpipes.

In this article, we’ll explore the difference between catless and catted downpipes, their benefits, and what you should consider before upgrading.

What Are Downpipes?

Downpipes are part of the exhaust system that connect the turbochargers to the rest of the exhaust. mercedes e63 downpipe install Their main function is to direct hot exhaust gases away from the turbo. In the Audi RS6 C8, the factory-installed downpipes are designed to meet emissions and noise regulations. While they keep the car compliant, they also restrict airflow, limiting power and exhaust sound.

Upgraded downpipes are less restrictive, allowing for greater exhaust flow, quicker turbo spool, and a more aggressive sound. They come in two main types: catless downpipes and catted downpipes.

Catless Downpipes

Catless downpipes remove the catalytic converters entirely, resulting in the least amount of exhaust restriction.

Benefits of Catless Downpipes:

• Maximum Performance Gains – Catless downpipes deliver the highest horsepower and torque increases by allowing the exhaust to flow freely.
  
• Aggressive Exhaust Note – They produce a louder, rawer exhaust tone that appeals to enthusiasts who want a track-inspired sound.
  
• Reduced Turbo Lag – With minimal restriction, turbochargers spool faster, improving throttle response.
  

Considerations:

• Emissions Compliance – Catless downpipes typically do not meet emissions standards and may not pass inspections in many regions.
  
• Check Engine Lights (CELs) – Removing catalytic converters can trigger warning lights unless the ECU is tuned accordingly.
  
• Noise Levels – While the sound is thrilling for some, it may be too loud for daily driving.
  

Catted Downpipes

Catted downpipes include high-flow catalytic converters designed to strike a balance between performance and emissions compliance.

Benefits of Catted Downpipes:

• Performance Improvement – Although slightly more restrictive than catless, they still provide significant horsepower and torque gains.
  
• Cleaner Emissions – High-flow cats reduce harmful emissions, making them more suitable for street use.
  
• Refined Sound – They enhance exhaust tone while keeping it less extreme compared to catless options.
  
• Fewer CEL Issues – Catted downpipes are less likely to trigger check engine lights, though a tune is still recommended.
  

Considerations:

• Cost – Catted downpipes are usually more expensive than catless options due to the inclusion of catalytic converters.
  

Installation and Tuning

Installing downpipes on the Audi RS6 C8 is a complex process that typically requires professional expertise. The job involves removing factory exhaust components, heat shields, and oxygen sensors. Professional installation ensures a proper fit, prevents exhaust leaks, and protects sensitive components.

In most cases, an ECU tune is highly recommended after installing either catless or catted downpipes. A tune not only maximizes power gains but also ensures the car runs smoothly without triggering error codes.

Choosing Between Catless and Catted

The decision between catless and catted downpipes ultimately depends on your goals and driving environment:

• Choose catless downpipes if you prioritize maximum performance, aggressive sound, and plan to use your RS6 primarily on the track.
  
• Opt for catted downpipes if you want significant power gains, improved sound, and emissions compliance for street driving.

Conclusion

Upgrading to aftermarket downpipes is one of the best modifications you can make to your Audi RS6 C8. Whether you go with catless for maximum performance or catted for a balanced approach, the result is an exciting transformation in both power and sound.

The mercedes amg gt63 downpipe install upgrade is an investment that enhances the already impressive performance of this powerhouse wagon, making every drive more thrilling and engaging.