Remus 046019 0500LR Sport Exhaust with Front Silencer for Audi RS4 B9

The Remus 046019 0500LR is a performance sport exhaust system with front silencer, engineered by Remus Innovation — Austria's leading exhaust manufacturer — for the Audi RS4 Avant Quattro (B9 platform) equipped with the 2.9L Biturbo engine (DECA/DECC). This system is designed as part of a GPF-back or axle-back configuration and delivers a more aggressive exhaust note along with measurable performance gains over the OEM system.

Key Features:

• 100% stainless steel construction for long-term corrosion resistance and durability
• Upgraded tube diameter — 70mm REMUS tube versus the factory 65mm, improving exhaust flow
• Electronically actuated exhaust valves — supplied actuators integrate with the vehicle's onboard electronics for active sound management
• Sport exhaust with front silencer — part number 046019 0500LR replaces the OEM rear section
• No rear skirt modifications required for fitment
• Installs at factory mounting points for a straightforward, bolt-on installation
• EC type-approved versions available for road-legal use (verify approval for your specific market)
• Made in Austria by Remus Innovation GmbH

This exhaust is compatible as a standalone sport exhaust with front silencer or as part of a complete GPF-back system when paired with the Remus 047017 0000 front section and a tail pipe set. A tail pipe set is sold separately and required to complete the installation. Note: the original exhaust must be cut during installation on some configurations. For track-only applications, ECU remapping is recommended to maximize performance gains and prevent check engine warnings.