About: http://webisa.webdatacommons.org/358305925

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A piggy back device is a device meant to externally alter one or more signals sent to the ECU. This is a very common thing to do but also very expensive.
http://www.w3.org/ns/prov#wasQuotedFrom	fordforums.com