Came out of a running driving car I purchased, selling due to going to a Holley EFI setup. Will come with wideband o2, adapter harness to plug into OEM, and serial cable with usb adapter. Wideband harness was cut to remove so will need to be spliced back together. Works with BigComm software which is on the BS3 site and modern laptops. Sold AS-IS no returns I have no way of testing every option on it. $350 obo shipped US only.