AWE Tuning Touring Edition Mid Pipe Conversion Kit (replaces DualPhase Mid Pipe) (3815-11000)This mid pipe is equipped with a single bespoke resonator, and omits the additional 180 Technology resonator found in the DualPhase mid pipe. The result is a more present tone within the cabin at cruising speeds. 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