WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.Meet the perfected B9 S4 soundtrack. 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 AWEs 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.
- Max gains of 16 hp and 17 lb-ft of torque at the crank (exhaust)
- Features AWE's proprietary drone-cancelling solution, 180 Technology®
- Post-catalyst downpipes and precision-engineered x-pipe included in all editions
- Specifically engineered downpipe resonators for use with aftermarket catalysts available separately
- Compatible with standard and sport differentials
- 102mm double-walled 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
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. 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. Its one of the reasons AWE exhausts have earned a reputation for the perfect tone, regardless of application. 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.
