I have a used C950 that came off a HSR system. Wideband O2, harness, ECU, Laptop cable, and instructions included. I decided to update to the HP system so I don't have much use for this. I cannot at the moment find the install CD but it is easily downloaded from Holley's site. Located in SW Kansas but if you need it shipped, I can do that too. I could get a quote Monday through Friday. I'd like to get $500 for it but I am open to offers as long as they are realistic. I have attached pics of it