Includes TCFI plug-in fuel injection controller, USB interface for PC, software, WEGO IIID dual-channel wide-band exhaust gas oxygen sensor interface, two Bosch LSU 4.2 wide-band exhaust gas oxygen sensors and two 18 x 1.5mm weld nuts for exhaust pipes User-friendly PC link software with 3-D graphics and easy spreadsheet editing capabilities for quick cell block changes Supports all sensors including theft/security module Programmable user input and output Made in the U.S.A.. CONTROLLER TCFI4 01 TC