The Mercedes-AMG A45s is one of the most, if not the most powerful hot hatch in the market, rivaling even the Audi RS3 and BMW M2.  The only exhaust system that will do this powerful vehicle justice is ARMYTRIX's supreme exhaust. 

The ARMYTRIX valvetronic exhaust system for the W177 A45s has
- Opf & Non-opf Compatibility
- Remote & App Control Function 
- De-catted & Ceramic Downpipes 

The ARMYTRIX exhaust system is specially designed for the new emission regulations so you can own the enhanced Mercedes-AMG A45s anywhere in the world! Both Opf & Non-opf versions are available to cater to your location. The system is also paired with the remote control that allows the driver to choose which mode to cruise in. The neighborhood mode (valves off) to be just a little bit considerate for your neighbors and the beast mode (valves on) to show off the incredible explosive power. There is also auto mode, which will automatically open and close the valves at the appropriate rpm so you can enjoy the thrill of driving entirely.
ARMYTRIX's de-catted down pipe will deliver the unfiltered roar that is unmatched by any other. There is also the 200 CPSI option for those in regions with stricter restrictions, but the power will still be undeniable. The ceramic coating will not only ensure durability of the exhaust, but it will also reduce heat radiation towards the surrounding area of the downpipe.

Compatible with the new Mercedes-Benz Dynamic Select feature, the ARMYTRIX interactive valve control technology allows the driver to fully immerse into the exhaust and driving experience. The state of the art technology allows valves to open and close in accordance to the mode that driver selects.   

Be sure to check out the videos and photos for the experience! 
You do not want to miss out. 

Mercedes Benz/A-Klasse/W177 A45 S AMG (2019-present) valvetronic exhaust system

Question? Email

3 Modes Switch

  • Smart Mode

  • Neighbor Mode

  • Beast Mode


As an Armytrix fan, customer, or potential customer, you have likely heard of Valvetronic. It's one of the prominent selling features of Armytrix exhaust systems and has shifted the entire exhaust industry towards adopting similar technology in all exhaust systems. The whole point of the Valvetronic system is to give you an option for how loud you want your car to be. If you leave early in the morning for work, you probably don't want your car to be excessively loud, as it will upset your neighbors. Once you're out on the open road or shredding a canyon road, you want to hear those awesome noises your car makes

The Valvetronic system allows you to switch between being quiet and being loud with the push of a button via the included remote or through the smartphone application; this works by tapping into a vacuum source on your engine and connecting it to the control module. When you press the button on the remote or smartphone application, you are communicating with the OBDII module via Bluetooth. This OBDII module tells the exhaust valve module to allow the engine vacuum to open or close the exhaust valve. You can also set the exhaust valve module to an automatic mode which will open/close the exhaust valve based on predetermined RPM range or throttle position.

Aside from getting a brutal sound with the Valvetronic system open, you can also gain power, especially if your car is turbocharged. Depending on the car, modifications, and tune you have, the valve being open will also the exhaust gas to flow more freely, as it does not have to pass through any muffler. If your vehicle is turbocharged, you may see a slight increase in boost pressure depending if you are running an open or closed boost cycle, resulting in more horsepower.

A Touch Of Brilliance

Modern minimalist design
Piano surface-like key brings high gloss finish

Modern minimalist design
APP Smart Assistant

The mobile APP of ARMYTRIX can connect to the OBDII device via Bluetooth, and be used to as a remote controller to easily control valve switch and provide you with real-time monitoring of variuos values of your car, such as rotate speed, speed, fuel, etc. The rpm value in Auto mode can be set to open valves.

  • Valves Control
  • Car Data
  • Settings
  • Error Code
  • Diary
Plug and Play
Combination Of Intelligence

Cutting-edge Interactive Valve Control technology
Simply control valves with OEM driving mode select
All for driving pleasure

* Compatible with Mercedes (2018+ W / LED Dashboard) models ONLY

Plug and Play
Plug and Play

Exclusive OBDII dongle module
Reduce 30% of installation time
No more complex wiring work

Unleash the ultra-high decibel output
for adrenaline-fuelled enjoyment
Designed To Perform, Destined To Amaze

Highest standard wind tunnel test, multiple tests and verification evoke
beast performance limit.

Downpipe with cutting-edge flexible pipe technology

Protect exhaust pipes from breakage and facilitate cooling to maximize engine performance

Special rapid-cooling
ceramic coating
reduces under-hood
temperature and
resistant to rust and
corrosion ( build-to-order )

Ceramic Coated Downpipe

Prevents metal fatigue from high temperature.

Standard Downpipe

Deteriorate under high temperature which leads to pipe breakage.

3D scans car underbody for reverse
engineering to collect all hardware data,
result in rapid prototyping with high
Simulation software for gas flow, thermal energy
leakage of a variety of data analysis
Meticulously crafted for precise fitment
Quality is our pride of workmanship
Crystallization Of Technology And Art

Multiple refined mechanical polishing contributes to craftmanship level surface brightness.

Cristallization Of Technology And Art
Shred Labels Set New Standard

High standard T.I.G. hand welding provides the strongest and
smoothest welds without welding slag.

  • Shiny Silver
  • Unique Blue
  • Mysterious
  • Lightweight
  • Luxurious Gold
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