AWE Tuning Mercedes-Benz W213 AMG E63/S Sedan/Wagon SwitchPath Exhaust System - for Non-DPE CarsAt the intersection of sophistication and savagery lies the W213 AMG E63 S SwitchPath Exhaust. AWE SwitchPath Exhaust Technology utilizes strategically placed valves in the exhaust to control tone and volume. Equipped with a valved H pipe up front and valved resonators in the rear, the AWE SwitchPath Exhaust is capable of an attitude adjustment with the press of a button sophisticated to savage. There are two options of the SwitchPath Exhaust, one for