Description
The SST Exhaust Flap/Valve Control is designed for Audi A8 Type 4H models (2012–2017), offering complete control over your exhaust flaps at the touch of a button. This Made-in-Germany plug-and-play system works seamlessly with the stock exhaust and delivers even greater results when paired with a sports exhaust system.
Important Notice:
This product must not be installed in vehicles with ABE/road approval within the European Union. Installation may void the vehicle’s operating license. Intended strictly for racing, show use, or export only. Please confirm your local regulations before installation.
Features:
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Made in Germany – premium quality
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Plug-and-play installation, pre-assembled and pre-programmed
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Compact design: 67 x 31 x 19 mm
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Waterproof installation in the engine compartment (E-box/fuse box), invisible from the outside
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Controls 2 exhaust flaps
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Includes illustrated installation and operating instructions
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No vehicle modifications required
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Zero quiescent current consumption when switched off
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Seamless integration with vehicle electronics – no error codes or malfunctions
Fitment (Audi A8 Type 4H):
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Audi A8 228 kW / 306 HP (2013–2017)
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Audi A8(L) 309 kW / 414 HP (2012–2013)
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Audi A8(L) 320 kW / 429 HP (2013–2014)
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Audi A8(L) 331 kW / 444 HP (2015–2017)
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Audi A8L 245 kW / 329 HP (2013–2017)
Operating Modes:
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Sport Mode: Flap(s) permanently open – maximum exhaust sound
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Comfort Mode: Flap(s) permanently closed – quieter operation
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Factory Mode: Flap(s) operate as in OEM stock configuration
Additional Features:
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Memory function allows the system to remember the last active mode at startup
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Option to set a default mode that activates every time the engine starts
Optional DELUXE Upgrade
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Continuous exhaust flap diagnostics
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Detects and reports malfunctions (e.g., flap stuck, sluggish, or failing to reach end position) directly to the vehicle
