Armytrix Audi TT TFSI Coupé (2015-present) Valvetronic exhaust system

Awaken the full character of your Audi TT 8S MK3 1.8 or 2.0 TFSI with the Armytrix Valvetronic Exhaust System—a high-performance cat-back upgrade that transforms your Coupé into a responsive, sonically thrilling machine. Designed to deliver bold tone, increased flow, and real-time control over valve function, this system brings the sound and performance your TT was meant to have.

Featuring a full 3” mandrel-bent stainless steel main pipe and dual 4.5” tips, this system delivers an aggressive, refined exhaust note with noticeable improvements in throttle response and driving engagement. Supplied with precision-fit reducers, the Armytrix system offers complete flexibility whether pairing with your stock catalytic converter or running a de-catted setup.

Key Features:

• Designed for Audi TT 8S MK3 1.8 / 2.0 TFSI 2WD Coupé (2015–Present)

• Main pipe diameter: 3” – engineered for optimal flow and tone

• Dual 4.5” tips – aggressive styling and pronounced rear acoustics

• Valvetronic system – switch between stealth and sport at any time

• App & remote controlled (compatible with iOS & Android devices)

• Direct bolt-on fitment – hassle-free installation with no cutting or welding

• Armytrix OBDII plug-n-play module – reduces installation time by 30%

• CEL prevention system – integrated catalytic converter & OPF fault-clearing technology

• LHD and RHD compatible – engineered for worldwide fitment

Smart Compatibility with OEM & Armytrix Components:

• Cat-Back System: Includes 65mm → 3” reducer to connect seamlessly to the factory catalytic converter

• Armytrix Downpipe (De-catted): Includes 3” → 65mm reducer to integrate with the stock cat-back system if needed

Fitment Restrictions:

• Use VIN to confirm compatibility before installation to ensure proper fitment for your vehicle

Wireless Valve Control via OBDII Module: Armytrix OBDII Control Module is REQUIRED

Install via the vehicle’s OBDII port for instant valve control with the included key fob or smartphone app. Exhaust modes include:

• ON – Valves fully open for maximum volume and performance

• OFF – Valves closed for a quieter, more refined tone

• AUTO – Adaptive mode responds to throttle input and RPM in real-time

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Exclusive Check Engine Light Prevention System:

Integrated with Armytrix’s proprietary catalytic converter and OPF fault-clearing mechanism, this exhaust system is designed to minimize the chances of triggering a Check Engine Light, even with high-flow or de-catted setups—making it ideal for tuned or modified vehicles.

Fitment:

• Vehicle: Audi TT 8S MK3 Coupé

• Engine Options: 1.8 TFSI / 2.0 TFSI

• Drivetrain: 2WD

• Years: 2015–Present

• Drive Configuration: Left-Hand Drive & Right-Hand Drive compatible

• Note: Reducers included for compatibility with stock or Armytrix downpipe setups