ETS Mid Pipe Resonated 2015-2018 STIThe ETS Mid Pipe is a performance enhancing modification designed to increase horsepower and torque while improving throttle response as well as reducing turbo lag. This is achieved through smooth mandrel bends that limit exhaust turbulence and backpressure under acceleration to allow the turbo to react faster under throttle. Additionally, the increased piping diameter allows better flow throughout the entire exhaust system that creates a more