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Audi C8 RS6 / RS7 400 Cell Catted Downpipes

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Audi C8 RS6 / RS7 400 Cell Catted Downpipes

AUD.C8.RS6.FF.400C.BR

Audi C8 RS6 / RS7 – EPA-Compliant 400 Cell Catted Downpipes

Engineered for the 4.0T Twin-Turbo V8 • High-Flow • Compliant •


Introducing Our NEW 400 Cell EPA-Compliant Downpipes for C8 RS6 / RS7

The Audi C8 RS6 and RS7 combine executive refinement with supercar-level performance, powered by the formidable 4.0T twin-turbo V8. While factory catalysts restrict exhaust flow and mute the engine’s full character, our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to reduce backpressure, enhance turbo efficiency, and unlock a deeper, more commanding exhaust tone — all while maintaining emissions compliance standards.

This upgrade forms the foundation of serious 4.0T performance.


Why Upgrade to 400 Cell?

  • EPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust efficiency while maintaining compliance standards.
  • Improved Turbo Spool & Mid-Range Response: Reduced restriction sharpens throttle input and power delivery.
  • Enhanced Exhaust Character: Deeper tone with stronger turbo acoustics and more pronounced high-RPM presence.
  • Street & Performance Balanced: Noticeable gains without compromising daily refinement.

Performance & Engineering

  • Optimized Flow Architecture: Minimizes backpressure while preserving catalyst efficiency.
  • Mandrel-Bent Tubing: Smooth internal transitions for maximum exhaust velocity.
  • Precision TIG Welding: Built to endure sustained high exhaust temperatures and boost levels.
  • Direct OEM Bolt-On Installation: Utilizes factory mounting locations for straightforward installation.
  • Engineered to Pair Seamlessly with Valvetronic Exhaust Systems

Sound Transformation

  • Stock Exhaust + Downpipes: Noticeable increase in depth and turbo presence with enhanced exhaust clarity.
  • Valvetronic Exhaust + Downpipes: Maximum transformation — stronger presence, sharper transitions, and a true Audi Sport-inspired signature.

Construction & Durability

  • Premium high-grade stainless steel construction
  • High-temperature resistant 400 cell catalyst cores
  • OEM-style sensor placement for proper operation
  • Engineered for long-term reliability under high-performance conditions

Unleash the full potential of your C8 RS6 or RS7 — starting at the source.

2019
Audi
RS 6
2020
Audi
RS 6
2021
Audi
RS 6
2022
Audi
RS 6
2023
Audi
RS 6
2024
Audi
RS 6
2025
Audi
RS 6
2026
Audi
RS 6
2019
Audi
RS 7
2020
Audi
RS 7
2021
Audi
RS 7
2022
Audi
RS 7
2023
Audi
RS 7
2024
Audi
RS 7
2025
Audi
RS 7
2026
Audi
RS 7
$956.87

Original: $2,733.90

-65%
Audi C8 RS6 / RS7 400 Cell Catted Downpipes

$2,733.90

$956.87

Product Information

Shipping & Returns

Description

AUD.C8.RS6.FF.400C.BR

Audi C8 RS6 / RS7 – EPA-Compliant 400 Cell Catted Downpipes

Engineered for the 4.0T Twin-Turbo V8 • High-Flow • Compliant •


Introducing Our NEW 400 Cell EPA-Compliant Downpipes for C8 RS6 / RS7

The Audi C8 RS6 and RS7 combine executive refinement with supercar-level performance, powered by the formidable 4.0T twin-turbo V8. While factory catalysts restrict exhaust flow and mute the engine’s full character, our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to reduce backpressure, enhance turbo efficiency, and unlock a deeper, more commanding exhaust tone — all while maintaining emissions compliance standards.

This upgrade forms the foundation of serious 4.0T performance.


Why Upgrade to 400 Cell?

  • EPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust efficiency while maintaining compliance standards.
  • Improved Turbo Spool & Mid-Range Response: Reduced restriction sharpens throttle input and power delivery.
  • Enhanced Exhaust Character: Deeper tone with stronger turbo acoustics and more pronounced high-RPM presence.
  • Street & Performance Balanced: Noticeable gains without compromising daily refinement.

Performance & Engineering

  • Optimized Flow Architecture: Minimizes backpressure while preserving catalyst efficiency.
  • Mandrel-Bent Tubing: Smooth internal transitions for maximum exhaust velocity.
  • Precision TIG Welding: Built to endure sustained high exhaust temperatures and boost levels.
  • Direct OEM Bolt-On Installation: Utilizes factory mounting locations for straightforward installation.
  • Engineered to Pair Seamlessly with Valvetronic Exhaust Systems

Sound Transformation

  • Stock Exhaust + Downpipes: Noticeable increase in depth and turbo presence with enhanced exhaust clarity.
  • Valvetronic Exhaust + Downpipes: Maximum transformation — stronger presence, sharper transitions, and a true Audi Sport-inspired signature.

Construction & Durability

  • Premium high-grade stainless steel construction
  • High-temperature resistant 400 cell catalyst cores
  • OEM-style sensor placement for proper operation
  • Engineered for long-term reliability under high-performance conditions

Unleash the full potential of your C8 RS6 or RS7 — starting at the source.

2019
Audi
RS 6
2020
Audi
RS 6
2021
Audi
RS 6
2022
Audi
RS 6
2023
Audi
RS 6
2024
Audi
RS 6
2025
Audi
RS 6
2026
Audi
RS 6
2019
Audi
RS 7
2020
Audi
RS 7
2021
Audi
RS 7
2022
Audi
RS 7
2023
Audi
RS 7
2024
Audi
RS 7
2025
Audi
RS 7
2026
Audi
RS 7

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