APR 21-25 Audi RS6/RS7 (C8) Catback Exhaust System

The entire system is increased to a dual 3” (72mm) exhaust path. With the exhaust valves open, the exhaust gasses travel uninterrupted from the front of the system out through the exhaust tips. When exhaust gasses travel into the multichambered rear muffler / resonator, they continue uninterrupted and a Helmholtz resonator reduces drone frequences without restricting flow on the open-valve path. With the valves closed, exhaust gasses travel through a sound reduction path via a smaller 2.5” (63.5mm) pipe, reducing volume and allowing the system to act more civilized when needed. Finally the system terminates via oversized 8.23”x4.76” (211x21mm) RS-style oval exhaust tips. The tips feature a diamond black finish and a subtle APR logo for a refined touch. Fits Audi RS6 21-25, RS7 21-25

• Smooth transitions and straight-through components maximize performance by reducing restrictions.
• Complete catalyst-back system including downpipes, extending from the factory catalyst back.
• Precision brackets and slip clamps ensure accurate alignment and hassle-free installation.
• Premium T304 stainless steel construction with TIG welding for strength and durability.
• Strikes the perfect balance of power, sound, style, and quality for enthusiasts.
• Performance gains of 9 HP and 16 FT-LBS of torque delivered to all four wheels.
• Valve-controlled rear mufflers dynamically adjust sound based on driving style.
• Integrated Helmholtz resonator minimizes drone and enhances sound quality.
• Optimized flow through dual 3.0” piping with quad exits into dual tips.
• Dual 8.23”x4.76” RS-style diamond black oval tips with APR logo.
• Fully emissions compliant for worry-free operation.
• Mandrel-bent brushed piping for a refined finish.

Upgrade your C8 Audi RS6 Avant or RS7 with the APR aprCBK0050 cat-back exhaust system, engineered to improve exhaust flow, sound quality, and visual appeal. This complete catalyst-back system extends from the factory catalysts and uses smooth transitions, straight-through components, and mandrel-bent dual 3.0-inch piping to reduce restriction. The valve-controlled design provides an aggressive, unrestricted exhaust path when the valves are open while offering a quieter, more refined driving experience when they are closed.
When open, exhaust gases travel through the primary dual 3.0-inch path and exit through the rear mufflers with minimal interruption. An integrated Helmholtz resonator helps reduce unwanted drone frequencies without compromising airflow. With the valves closed, gases are routed through a smaller 2.5-inch sound-reduction path to lower volume for more comfortable daily driving. APR reports gains of up to 9 horsepower and 16 pound-feet of torque delivered to all four wheels, depending on vehicle configuration and conditions.
Constructed from premium T304 stainless steel, the APR aprCBK0050 features TIG-welded components, precision brackets, and slip clamps for durability and accurate installation. The system terminates in dual RS-style oval exhaust tips with a diamond black finish and subtle APR logos. These oversized tips provide a distinctive appearance while complementing the factory styling of the Audi RS6 and RS7. The system is designed for 2021-2025 Audi RS6 Avant and RS7 Sportback models and is fully emissions compliant for worry-free operation.

Features:

• Vehicle Fitment: Fits 2021-2025 Audi RS6 Avant and RS7 Sportback models

• Exhaust Design: Complete catalyst-back system extending from the factory catalysts

• Piping: Dual 3.0-inch mandrel-bent piping optimized for high-flow performance

• Valve Control: Valve-controlled rear mufflers adjust sound output based on driving conditions

• Sound Management: Integrated Helmholtz resonator minimizes drone while preserving exhaust flow

• Construction: Premium T304 stainless steel with TIG-welded components for strength and durability

• Installation: Precision brackets and slip clamps support accurate alignment and straightforward installation

• Performance: Delivers reported gains of up to 9 horsepower and 16 pound-feet of torque to all four wheels

• Exhaust Tips: Dual RS-style oval tips with a diamond black finish and subtle APR logos

• Compliance: Fully emissions compliant for worry-free operation

Fitment:
Audi RS6 Avant Base 2021
Audi RS6 Avant Base 2022
Audi RS6 Avant Base 2023
Audi RS6 Avant GT 2025
Audi RS6 Avant Performance 2024
Audi RS6 Avant Performance 2025
Audi RS6 Avant Performance 2026
Audi RS7 Sportback Base 2021
Audi RS7 Sportback Base 2022
Audi RS7 Sportback Base 2023
Audi RS7 Sportback Performance 2024
Audi RS7 Sportback Performance 2025
Audi RS7 Sportback Performance 2026