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AWE Resonated Exhaust Suite for AWE Performance Catalyst

(SKU: AWE_B9_S4_Exhaust_Suite_Resonated)

In stock

Regular Price: $2,205.26

Special Price: $2,095.00

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Regular Price: $2,205.26

Special Price: $2,095.00

Meet the perfected soundtrack for B9 S4s equipped with the AWE Performance Catalyst (Sold Separately, right here)

  • Max gains of 23 hp and 27 ft-lbs of torque at the crank (with catalyst equipped)
  • 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
  • Resonated Downpipes and precision-engineered x-pipe included in all editions
  • Specifically engineered downpipe resonators for use with the AWE Performance Catalyst
  • 90mm or 102mm double-walled tips available in chrome silver or diamond black, and coming soon: 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
  • Featuring the AWE Lifetime Exhaust Warranty
Not planning to run the AWE Performance Catalyst yet, check out our exhaust options for the stock Catalyst.
No worries, you can always convert the resonators if you decide you want the Catalyst later on.






Exhaust configurations recommended for use with the AWE Performance Catalyst: 

Given the increase of airflow with the Performance Catalyst, special resonators were developed to keep sound frequencies in check. These larger resonators are included in exhaust configurations labeled as "Resonated for Performance Catalyst," and available independently (to be added to existing AWE exhausts) via the "Resonator Conversion Kit." 

Please note: these specially resonated exhausts are optimized to be used with the Performance Catalyst, but they are not required.  However,  AWE Exhausts and Performance Catalysts may not be returned (absent manufacturer defect under normal warranty guidelines) if being run without the recommended exhaust configurations.

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.  

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

Note: you may notice a slight rattle upon cold start as you would with many factory valved systems. This sound will go away within a few minutes and you will be off to the races in no time.

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 soon. (*Please note, if you want to switch to carbon fiber tips later on, you should purchase an exhaust with 90mm tips)

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.


SKU: 1325-11028, 3025-43034, 3025-42030, 3025-43038, 3025-42034, 3010-43050, 3010-42056, 3010-43054, 3010-42060, 3010-43048, 3010-42054, 3010-43052, 3010-42058

Vehicle Applications

Year Make Model Submodel Engine
2018 Audi S4 Sedan 3.0T
2019 Audi S4 Sedan 3.0T
2020 Audi S4 Sedan 3.0T