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Armytrix Audi RS4 OPF Valvetronic Exhaust - Compatible with OE Valve Control
£4,697.00
Armytrix Valvetronic Exhaust System – Audi RS4 B9 Avant 2.9 V6 Turbo OPF (2019–Present)
Transform your Audi RS4 B9 Avant (2019–Present) 2.9 V6 Turbo OPF with the Armytrix Valvetronic Exhaust System – a high-performance, direct bolt-on upgrade designed to deliver race-inspired sound, improved flow, and complete control through OEM valvetronic integration.
Engineered for both left-hand drive and right-hand drive vehicles, this system features a robust 3.5" main pipe diameter and signature dual oval tips for a deep, aggressive exhaust note. It’s compatible with the OEM exhaust valve system, or can be controlled via the Armytrix Plug-n-Play OBDII Module, offering app-based management of valve behavior. For vacuum-based valve setups, the OBDII module is required and cannot be used with other OBDII devices.
When using vacuum valves, OEM Valve Delete Boxes (2 per vehicle) are highly recommended to avoid limp mode – two versions are available and VIN verification is required to ensure compatibility. The full EV system (cat-back + downpipe) also includes the Armynator, enabling AUTO mode for seamless sound transitions and optimal performance.
Additionally, the system includes an exclusive catalytic converter and OPF fault-code clearing mechanism, significantly reducing the likelihood of a check engine light after installation.
Key Features:
Designed for Audi RS4 B9 Avant 2.9 V6 Turbo OPF (2019–Present)
Compatible with both LHD and RHD models
3.5” main pipe diameter with dual oval exhaust tips
Direct bolt-on installation – no cutting or fabrication needed
Supports OEM valvetronic control or optional OBDII Plug-n-Play module
Vacuum valve setup requires Armytrix OBDII module (not compatible with other OBDII devices)
OEM Valve Delete Boxes (2 required) recommended for limp mode prevention (VIN verification needed)
Catalytic converter + OPF fault-code clearing mechanism reduces CEL risk
Multiple versions of front pipes and downpipes available – VIN verification required
Experience next-level sound, control, and performance with Armytrix – the ultimate exhaust upgrade for your RS4 B9 OPF.
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PLEASE BE AWARE: Sports cats can NOT legally be installed on a vehicle for use on a public road that was manufactured after 1st March 2001 unless type ECE 103R approved - this can be identified in either the product description and/or in the Technical Information section listed. If you have any doubt on this approval, please contact us immediately for confirmation. Fitting a De-Cat/Cat Bypass, DPF delete/bypass or GPF delete/bypass to a vehicle that is to be used on UK roads will cause the vehicle to fail the MOT emissions test, therefore rendering it unroadworthy and illegal to be used on the road. Therefore, any such products are strictly sold as off-road or motorsport use only and NOT for road use. The vehicle should be transported from place to place via a trailer, flatbed or other recovery means.
