The PowerFlow Throttle Body Kit is an off-the-shelf, easy to install, throttle body performance kit that creates more power and better throttle response. The kit comes with two different performance options, one for low-mid range performance and the other for top end performance.Install and Remove without modifying the OEM Throttle body.Get Faster Smoother Throttle Response.Eliminate High End Flow Loss.The Twin Air PowerFlow Throttle Body Kit Configuration #1 provides low-mid range gains utilizing a smaller diameter intake tube and a lower profile throttle valve. This configuration increases the throttle response making the power more controllable.The PowerFlow Throttle Body Kit Configuration #2 is designed for increasing top end power gains by reducing the surface area of the throttle body valve. This configuration does not use the orange intake tube.