audi a4 b9 exhaust

Audi a4 b9 exhaust navigation screen protector display film

Audi a4 b9 exhaust

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audi a4 b9 exhaust deal
audi a4 b9 exhaust deal

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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 Audi a4 b9 exhaust 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.

audi a4 b9 exhaust new
audi a4 b9 exhaust new


All CTS Turbo products are warrantied against manufacturing defects for a period of 12 months from the date of invoice. Warranty does not cover abuse, misuse, consequential damages, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective the customer will receive, at the discretion of CTS Turbo, free repair or replacement. Warranty on other manufacturers will be processed under their terms.

Audi a4 b9 exhaust Turbo has been dedicated to manufacturing performance parts for enthusiasts by enthusiasts since its inception.

The CTS Turbo B9 Audi A4 2.0T 3″ cat-back exhaust system is hand tig welded using the finest T304 stainless steel. Our exhaust system was designed for both street use and big turbo abuse.

audi a4 b9 exhaust overview
audi a4 b9 exhaust overview

The 3″ design of the CTS Turbo B9 Audi A4 cat-back is ideal those of us chasing serious horsepower.

3″ non-resonated downpipe, dual 2.5″ exhaust pipes
Aggressive sound under hard driving, but subtle when cruising
Water jet cut flanges
CNC mandrel-bent stainless steel piping
Double-wall 4.0″ tips
Drone-free resonators
Will not cause a CEL
10-12hp gain by replacing restrictive factory exhaust

2017-2019 Audi A4 2.0T (will not fit facelift models with fake exhaust tips in bumper)
Note: compatible with factory catalytic converter or aftermarket test-pipe, high-flow catalytic converters.

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