Hand-crafted, every detail drives toward maximum performance, quality and perfect sound:
Sound Perfection: AWE Tuning 180 Technology™
As exhaust gases exit the 3.0T 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 re-join 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.
Tip options are as follows - all of which include the AWE Tuning logo, and double walling to ensure a mirror finish even under hard usage.
All tips are individually adjustable, so stagger and depth into bumper can be set according to personal taste.
Please note: 102mm tips will only fit on 2013+ S4's. To accommodate the 102mm tips, the muffler itself had to be re-engineered, and as such, tips cannot be changed from 90mm to 102mm without the purchase of a new rear section of the system.
As with all AWE Tuning ® exhaust products, each TIG weld is hand finished internally, and flange openings are size matched to their ports, all to produce the smoothest flow possible. It is this intensive attention to detail that sets AWE Tuning ® exhaust products heads and shoulders above the rest.
Notes: In limited cases, the factory downpipes have been known to emit minor rattling noises when paired with the AWE Tuning S4 exhaust system. The possibility of rattling is eliminated with the addition of AWE Tuning downpipes. AWE Tuning downpipes are package discounted when purchased with the exhaust, or if they are purchased within one year of an exhaust purchase.