Description
The SST Exhaust Flap / Valve Control for the Audi S4 Type 8E (2004–2009) offers complete control over your vehicle’s exhaust sound at the touch of a button. This high-quality, German-engineered plug-and-play control unit allows you to open or close the exhaust flaps manually—giving you the flexibility to choose between a sporty, aggressive sound or a refined, quiet tone whenever you wish.
Perfectly compatible with the standard exhaust system as well as aftermarket sports exhausts, this system enhances driving dynamics and delivers an exhilarating exhaust note that truly matches the power of your Audi S4.
Vehicle Compatibility:
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Audi S4 (Type 8E) 253 kW / 339 hp (2004–2009)
Technical Specifications:
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Control Unit Type: AKS.MV1L
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Protection Class: IP66 (dustproof / waterproof)
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Number of Controlled Flaps: 1 or 2 (depending on vehicle configuration)
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Compact Dimensions: 65 × 50 × 35 mm
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Installation Location: Trunk (waterproof and invisible from the outside)
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Origin: Made in Germany
Key Features:
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Plug & Play Installation: Pre-assembled and pre-programmed for quick and easy installation. Includes comprehensive illustrated installation and operating instructions. Installation can also be performed at our site upon request.
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100% Compatibility: Seamless integration with the vehicle’s electronic system. No error messages, no coding required, and no interference with the on-board electronics.
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Power Efficient: No quiescent current draw when the unit is turned off.
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Mode Memory Function: Choose whether the system remembers your last selected mode or always starts in a predefined mode upon engine start.
Selectable Modes:
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Sport Mode: Flap(s) permanently open → enhanced exhaust sound and performance.
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Comfort Mode: Flap(s) permanently closed → quiet, comfortable driving experience.
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Factory Mode: Flaps operate as in OEM configuration → retains stock settings.
Additional Features:
The SST control unit is designed for reliability and adaptability. You can customize how the control behaves during startup and ensure your vehicle always starts with your preferred exhaust setting.
Important Notice:
This product is not approved for public road use within the European Union. Installation may cause the expiry of the vehicle’s operating license. Intended only for racing, show, or export purposes. Please verify the legal requirements in your country before installation.
The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.
