For the AWE Tuningr Panamera S/4S Touring Edition Exhaust, AWE knew the tone and volume had to be spot on. It needed to deliver an exotic wail at full throttle yet be quiet and civil during part throttle, around town driving. Countless research and development efforts by our Fabrication and Engineering Departments have yielded the finest Panamera exhaust on the market. AWE Tuning exhausts are like bespoke suits: each is hand made utilizing only the finest casing and packing materials, and they command respect without calling unwanted attention to themselves. Sophisticated, refined, and powerful, all at once. Further, each system is personalized with the original owner's name on the serial badge. System Highlights: Peak Gains +6 crank hp @ 5550 / +6 crank tq @ 4900 Max Gains +12 crank hp @ 6000 rpms / +11 crank tq @ 6000 Increased pipe diameter to 2.5" to better let the engine exhale X-Pipe for enhanced exhaust scavenging and improved tone AWE Tuning engraved, double walled Chrome Silver or Diamond Black adjustable tips T304 stainless tubing Stainless band clamps Lifetime Exhaust Warranty Sound Perfection: AWE Tuning 180 Technology™ As exhaust gases exit the 4.8L 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. Finish it off AWE Tuning Panamera S/4S Exhaust System is capped with attractive slash cut tips featuring the AWE Tuning logo. These tips are double walled to ensure a mirror finish even under hard usage. Choose between the classic Chrome Silver or the stand-out Diamond Black tips. Each tip is individually adjustable, so stagger and depth into bumper can be set according to personal taste.