AWE Touring Edition Exhaust System for B8 S5 4.2L - Diamond Black Tips3015 42026 Whether you're looking for the grabbing roar of our Track Edition or the more sophisticated tone of our Touring Edition, this family of Exhausts affords a solution for every discerning S5 owner. S5 4. 2L Touring Edition Exhaust System The more civilized member of the family is the S5 4. 2L Touring Edition Exhaust. In addition to the central muffler from the Track Exhaust, our Touring Edition system features an x pipe for enhanced exhaust