Josh/AWE

From the masters of S4 performance, AWE proudly presents the B9 S4 exhaust solution. Signature AWE tone, performance, and options for every taste and budget.

Presenting the AWE B9 S4 Exhaust Suite:

• Max gains of 16 hp and 17 ft-lbs of torque at the crank (exhaust)
• Max gains of 23 hp and 27 ft-lbs of torque at the crank (catalyst)
• Available as sophisticated Touring Edition, unleashed Track Edition, and valved SwitchPath™
• Touring Edition Exhausts features AWE’s proprietary drone-canceling solution, 180 Technology®
• SwitchPath™ Exhaust can be controlled with optional handheld remote, or factory valve programming
• Downpipes and precision-engineered x-pipe included in all editions
• Specifically engineered downpipe resonators for use with the catalyst available separately
• Performance Catalyst features a precision CNC-machined billet T304 stainless steel flange, and 145mm 200CPSI EURO6 HJS HD catalyst with tri-lobe core
• Compatible with standard and sport differentials
• 90mm or 102mm double-walled tips available in chrome silver or diamond black, and coming winter 2017: AWE carbon fiber tips
• Proudly engineered, designed, and manufactured in-house at AWE, in the USA
• Less is more: clean, straight-through design maximizes performance
• Handcrafted from dual 2.5” CNC mandrel-bent U.S.-sourced .065” wall T304L stainless steel
• Direct bolt-on system, factory-like install simplicity
• Perfect fitment - guaranteed
• No Check Engine Light - guaranteed

The Options:

Touring Edition Exhaust

The best just got better.

Signature AWE howl, delivered. The Touring Edition is the sophisticated member of the B9 S4 exhaust family.

The Touring Edition Exhaust removes the factory valving and replaces it with AWE’s 180 Technology® drone-cancelling resonators (and electronic valve simulators). This solution provides for a perfect, signature AWE experience: civil within the cabin while cruising, yet all the pops and burbles during acceleration and downshifts.

The Touring Edition Exhaust comes complete with 180 Technology® resonators, a precision-engineered x-pipe, resonated downpipes, and your choice of 90 or 102mm tips in either diamond black or chrome silver.








Sound Perfection: AWE 180 Technology®

Perfect tone, compliments of AWE 180 Technology®.

As exhaust gases exit the 3.0T 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. By controlling the size and location of the ports and the chambers, we also control when the sound waves exit the chambers.

The specific timing of when the reflected sound waves rejoin the main exhaust flow creates a one-hundred-and-eighty-degree out-of-phase sound wave that cancels out problematic frequencies. Cool, right? Learn more on AWE’s 180 Technology® in the tab above.



Track Edition Exhaust

For those who like it loud, go Track.

The Track Edition Exhaust is equipped with the same precision-engineering as its Touring Edition counterpart, minus the resonators up front and 180 Technology® resonators in the rear. Instead, the Track Edition comes complete with non-resonated downpipes and straight pipe sections -- leaving the integrated x-pipe as the only filter.

This version is known to get rowdy, and may be too much for many. For that reason, this particular version cannot be returned due to sound preference. Prepare yourself.








SwitchPath™ Exhaust

The SwitchPath™ valved solution is for those who want complete control of their S4’s volume and tone, at their fingertips.

The SwitchPath™ Exhaust comes complete with non-resonated downpipes, a precision-engineered x-pipe mid-section, and two valved muffler sections which can be controlled via the SwitchPath™ Remote.

Sneaking out in the morning? Keep the valve closed. Ready to rumble? Open the valve and let them know you’re coming.

Note: we recommend and encourage pairing the SwitchPath™ Exhaust with the SwitchPath™ Remote versus using the factory operation for the best SwitchPath™ experience.











Performance Catalyst:

A precision CNC-machined billet T304 stainless steel flange, massive 145mm 200CPSI EURO 6 HJS catalyst with tri-lobe core, and 2.5” T304L stainless steel make up the Performance Catalyst’s construction for high-flow decongestion and an additional 12 hp and 15 ft-lbs of torque to the wheels.















Performance Catalyst-specific downpipe resonators:

Given the increase of airflow with the Performance Catalyst, special resonators were developed to keep frequencies in check. Though they are not required to run the Performance Catalyst, we strongly recommend and encourage the use of these specific resonators when equipping the Performance Catalyst.

Downpipe Resonator Conversion Kit:

Have an existing AWE exhaust and plan to add the AWE Performance Catalyst? No problem. The Performance Catalyst-specific downpipe resonators are available independently.



Tip Options:

All tip options include the AWE logo, and double walling to ensure a mirror finish even under hard usage. All tips are individually adjustable, allowing depth into the bumper to be set according to personal taste.

• 102mm or 90mm diamond black tips
• 102mm or 90mm chrome silver tips
• Carbon fiber tips, coming winter 2017

What’s in the box?

Complete SwitchPath™, Touring or Track Edition Edition Exhaust, four double-walled tips is chosen color and size, resonated or non-resonated downpipes, installation instructions, and required hardware.

Data:

Stankia

In the videos The SwitchPath even with the valves closed sounds louder than the Touring Edition, is this true in person?

Josh/AWE

Hi! Not sure how you're listening to them, but it's very clear that the Touring Edition is louder than the SwitchPath™ with the valve closed on this end. Very apparent in person, as well

Stankia

Oh great, always hard to tell from vids. It sounded to me that the SwitchPath had an additional rumble when the revs start to drop. How does it sound with the valves open in person? Comparable to the track edition?

1301f17

Hi, I have two questions.
For the Touring Edition Exhaust , compared to the stock one which is reported to have some lag when acceleration, is there any improvement about the lag?
And also for 180 Technology® drone-cancelling resonators , compared to the stock one, is it going to make low frequency drone like sound less prominent in low RPM?(it's hard to see just by listening the sound in the video)

Thanks.

Josh/AWE

You're likely hearing the result of being in "dynamic" mode. Valve open with SwitchPath™ is indeed comparable to the Track Edition.

Josh/AWE

It helps a bit.

180 Technology® kills the low frequencies emitted when cruising, yes. With all of the upgraded aspects of these systems compared to the stock configuration, it's very much needed considering how eager the S4's gearing is.

Josh/AWE

Fresh Track Edition installed by Eurotech Motorsport:

Josh/AWE

Happy to spool. Presenting the AWE Performance Catalyst for B9 S4/S5. Available now.

• Proudly designed, engineered, and manufactured in-house at AWE
• Max gains of 23 hp and 27 ft-lbs of torque at the crank
• Features a 145mm, 200CPSI EURO6 HJS HD catalyst with tri-lobe core
• Precision CNC-machined billet T304 stainless steel flange
• Direct bolt-on for factory like simplicity
• Specifically engineered downpipe resonators for use with the catalyst available separately
• Handcrafted out of US-sourced .065 wall T304L stainless steel
• Less is more: clean, straight-through design maximizes performance
• Perfect fitment, guaranteed
• Features the AWE No CEL Guarantee
• Lifetime warranty (one year on catalyst core)

Performance Catalyst:

A precision CNC-machined billet T304 stainless steel flange, massive 145mm 200CPSI EURO 6 HJS catalyst with tri-lobe core, and 2.5” T304L stainless steel make up the Performance Catalyst’s construction for high-flow decongestion and an additional 12 hp and 15 ft-lbs of torque to the wheels.















Performance Catalyst-specific downpipe resonators:

Given the increase of airflow with the Performance Catalyst, special resonators were developed to keep frequencies in check. Though they are not required to run the Performance Catalyst, we strongly recommend and encourage the use of these specific resonators when equipping the Performance Catalyst.

Downpipe Resonator Conversion Kit:

Have an existing AWE exhaust and plan to add the AWE Performance Catalyst? No problem. The Performance Catalyst-specific downpipe resonators are available independently.



Data:

​​​​​​​

Josh/AWE

Click here to learn more about AWE's Exhaust Suite for the B9 S4.