Awe Tuning® (17-18) Audi A4 Sedan 304SS Touring Exhaust System

Compatible: (2.0L)

2017 - 2018 Audi A4 Sedan

Sound. Performance. Options.  

• Max gains of 12 hp and 11 ft-lbs of torque at the crank with SwitchPath™ Exhaust, 10 hp and 10 ft-lbs of torque with Touring and Track Edition Exhausts
• Available as valved SwitchPath™ (with remote), sophisticated Touring Edition, or the more unleashed Track Edition
• Touring Edition Exhausts feature AWE Tuning’s proprietary drone-cancelling solution, 180 Technology®
• All systems are cat-back and come complete with a 3” downpipe that features an internally-lined stainless steel flex section
• 102mm double-walled tips available in Chrome Silver or Diamond Black
• Less is more: clean, straight-through design maximizes performance
• Engineered, designed, and manufactured in-house at AWE Tuning
• Handcrafted from CNC mandrel-bent U.S.-sourced T304 stainless steel
• Direct bolt-on system for factory-like simplicity
• No Check Engine Light - Guaranteed
• Perfect Fitment - Guaranteed
• Featuring the AWE Tuning Lifetime Exhaust Warranty

The Options

SwitchPath™ Exhaust

Valve closed for sophistication, valve open for aggression. All at the touch of the SwitchPath™ Remote button. Tone at your fingertips.

Equipped with a 3” resonated downpipe, a 3” valved straight section on the driver’s side and 2.5” piping with a muffler on the opposing passenger’s side, the AWE Tuning SwitchPath™ Exhaust is capable of changing soundtracks instantly with the touch of the SwitchPath™ Remote button at any time. Drone-free mood control accompanied by addicting, crackling gear shifts and impressive performance. Constant, all-around satisfaction.

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.

What’s in the box?

Complete SwitchPath™ Exhaust, SwitchPath™ Remote kit, two 102mm tips in desired finish, and all required installation hardware.

Touring Edition Exhaust

The AWE Tuning Touring Edition features a 3” Non-Resonated Downpipe, and is fully armed with AWE Tuning’s proprietary drone-canceling solution,180 Technology® on all sides... enabling the perfect tone, minus the drone.

The outcome? The ultimate mix of performance and sophistication. A direct bolt-on, straight-through design, the Touring Edition Exhaust delivers a civil, smooth soundtrack throughout the range while providing an enhanced in-cabin driving experience in any Drive Select mode.

Sound Perfection: AWE Tuning  180 Technology®.

As exhaust gases exit the B9 A4’s 2.0T engine and flow into an AWE Tuning 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. More on AWE Tuning 180 Technology® in the tab above.

What’s in the box?

Complete Touring Edition Exhaust, two 102mm tips in desired finish, and all required installation hardware.

Track Edition Exhaust

The Track Edition Exhaust is for drivers who want to keep it cranked to 11 at all times. The Track Edition Exhaust takes the engineered design of the Touring Edition Exhaust, including the 3” Non-Resonated Downpipe, and replaces the rear AWE Tuning 180 Technology® resonators with Track Edition straight pipe sections, completely uncorking the B9 A4. 

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

What’s in the box?

Complete Track Edition Exhaust, two 102mm tips in desired finish, and all required installation hardware.

Conversion Kits

It’s too loud! It’s too quiet!

Don’t worry. If you’re looking to crank up a notch or bring it down, perfectly engineered upgrade paths are available. Turn your Touring Edition to a Track Edition, or vice versa, with ease. Simply unclamp the rear Touring or Track Edition sections and replace with the new configuration.

Tip Options

All tip options include the AWE Tuning 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 slash-cut diamond black tips
• 102mm slash-cut chrome silver tips

The AWE No CEL (Check Engine Light) Guarantee is noted on certain AWE products, and offers peace of mind against the appearance of Check Engine Lights when products are installed properly and used as intended, on vehicles with no additional modifications, with the exception of other AWE products intended to work with the product in question.

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.

Install Guide:

Warranty: