Description
IE Catback Exhaust System for Audi C8 RS6 / RS7 (2021–2024) – Box 1 of 2
NOTE: This listing is Box 1 of 2 and must be paired with Box 2 (Part Number: IEEXCY1-Box 2) for the complete exhaust system. On the retail site, the full system is sold under a single part number (IEEXCY1) and ships in two boxes.
Unlock the full sound potential of your twin-turbocharged 4.0T V8 Audi RS6 Avant or RS7 Sportback with the IE Catback Exhaust System. Designed in-house using precision 3D scanning and engineered to deliver aggressive tone without drone, this premium exhaust system features IE’s proprietary DroneTrap™ resonators, valved sound control, and mandrel-bent 3" T304L stainless steel construction.
What's Included in Box 1:
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Front and mid-section piping
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High-flow resonators featuring DroneTrap™ Technology
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Integrated valved muffler section with OEM-style functionality
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Quality flex joints and reinforced bracketry
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All necessary mounting hardware and stretch clamps
Key Features:
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DroneTrap™ Technology – Cancels interior drone while enhancing deep, powerful exhaust tone
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Fully Valved System – Retains stock drive select control for quiet or aggressive operation
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True Catback Design – Replaces the entire factory exhaust from the downpipes back
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Large 3” Mandrel-Bent Piping – Supports stock and high-horsepower builds
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Hand TIG-Welded T304L Stainless Steel – Superior durability and corrosion resistance
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Multi-Point Reinforced Hangers – Designed to eliminate rattles and movement
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Stamped Center Muffler – Multi-wall reinforcement prevents weld failures
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Bridged Dual-Pipe Design – Increases structural integrity
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Leak-Free Stretch Clamps – OE-style clamp design ensures long-term sealing
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50-State Emissions Compliant – No CEL or emissions issues
OEM-Like Valve Operation
This system retains the factory Drive Select button functionality, allowing seamless integration with Comfort, Auto, Dynamic, and RS drive modes. When closed, the twin exhaust valves route airflow through the central muffler for a quieter tone. In Dynamic or RS mode, the valves open, redirecting exhaust flow through straight dual 3” piping—unleashing the raw V8 sound at full volume.
Built for Maximum Flow & Precision Fitment
Using advanced 3D scans of the C8 RS chassis, IE engineers optimized the routing and clearances for maximum performance and a direct bolt-on installation. No cutting or welding is required—just pure plug-and-play performance with perfect alignment.
Premium Manufacturing Standards
All piping is crafted from mandrel-bent T304L stainless steel with hand TIG-welded joints, ensuring maximum durability and a refined appearance. Double-wall flex joints handle high-torque stress and track use with ease, while multi-point hanger brackets ensure a rattle-free, secure mount even under load.
Must-Have Performance & Sound Upgrade
From the unmistakable tone of open-valve V8 aggression to the comfort of stock-like cruising, the IE Catback exhaust system delivers it all—without compromise. Combined with Box 2, you’ll experience a refined yet menacing exhaust sound worthy of your C8 RS6 or RS7.
