Part Description Part Number LS1 Coil, Ignitor, Plug HAL-38250 Air Temperature Sensor HAL-37250 Throttle Position Sensor HAL-37400 Coolant Temperature Sensor with 12mm x 1.50 thread Fits the stock hole in the back of the water pump housing. HAL-37300 Coolant Temperature Sensor with 3/8" Pipe thread HAL-37350    Sensor Pack -- with Air, TPS, and Coolant (12mm 1.50) HAL-37000  1-Bar Manifold Air Pressure Sensor with Plug HAL-37050 3-Bar Manifold Air Pressure Sensor with Plug HAL-37150   2-Rotor (4-cylinder), 1-Bar, Full Connector Kit HAL-40100   3-Rotor (6-cylinder), 1-Bar, Full Connector Kit HAL-40150   8-cylinder, 1-Bar, Full Connector Kit HAL-40200 Wide Band O2 Kit (Control, Sensor, and Gauge) HAL-38800   Oxygen Sensor Weld-In Bung HAL-38950 Boost Control Solenoid HAL-38400 LED Shift Light 2-stage (red & green) HAL-39100 Many more accessories will be added as soon as we get a chance -- the full HALTECH Product Line is available