FROM THE MASTERS OF 3.0T PERFORMANCE:

AWE proudly presents the B9 S4 exhaust solution—signature AWE tone, performance, and options for every taste and budget.

THE VALVED SWITCHPATH™:

The SwitchPath™ valved solution gives you complete control of volume and tone at your fingertips. Includes non-resonated downpipes, a precision-engineered X-pipe mid-section, and two valved mufflers, controllable via the factory setup or the optional AWE SwitchPath™ Remote.

Sneak out quietly with the valves closed, or open them to unleash full 3.0T fury.

Comes with 102mm slash-cut, double-walled tips in Chrome Silver or Diamond Black, each featuring the AWE logo and adjustable for bumper depth.

Note: A slight valve rattle may occur at cold start and fade within minutes, just like the factory exhaust.

Dyno Tests: AWE Exhaust Suite for Audi B9 S5 Sportback 3.0T

Below are comparison dyno tests as performed on our Mustang MD-500-SE AWD dyno.

Wheel horsepower gains for the AWE Exhaust Suite for Audi B9 S5 Sportback 3.0T

What is 180 Technology®?

AWE's patented 180 Technology® works a little something like this: As exhaust gases exit the engine and flow into an AWE 180 Technology®-equipped resonator, they pass through strategically located ports, and into reflection chambers.

Sound waves, carried by these exhaust gasses, bounce off the walls of the reflection chambers. Depending on the sound requirements of each vehicle, AWE acoustic engineers adjust the size and location of the ports and the chambers. By controlling the size and location of these key elements, we also control when the sound waves exit the chambers. The specific timing of when the reflected sound waves re-join the main exhaust flow creates a one-hundred-and-eighty-degree out-of-phase sound wave that cancels out problematic frequencies.

Consistency through change.

AWE 180 Technology® is not on a “one size fits all” concept. Rather, AWE engineers design sound cancelation resonators based upon the specific acoustics generated by vehicle types, thereby ensuring perfect sound, every time. It’s one of the reasons AWE exhausts have earned a reputation for the perfect tone, regardless of application.

What it means to you.

The result? The removal of unwanted tones in all AWE 180 Technology®-equipped exhaust systems. The sound produced by this formula is the perfect, signature note. Unlocked performance and spot-on tone, every time.

A video´s worth 1,000,000 words.

180 Technology® in action, below.

Download:

Installation Instructions for the AWE Exhaust Suite for Audi B9 S5 Sportback 3.0T

AWE SwitchPath™ Remote Instructions