INCREASES HORSEPOWER AND TORQUE To ensure the same high standards as other BBK throttle bodies,BBK starts with precision 356 aluminum alloy castings which is machined on BBK's ultra modern CNC machines to exact tolerances. Each unit is then hand assembled with high quality BBK components such as o ringed shaft, double sealed roller bearings, precision die stamped linkage assemblies along with factory quality fittings and connectors to ensure a perfect installation, long life and high performance. Shipping is always Free at stage3motorsports.com