The product is a new OEM Engine Computer Module (ECM) for a 2006-2008 Toyota Prius. It requires programming and has a bolt-on mounting style. The ECM is manufactured by Toyota in Japan and comes with a 1-month manufacturer warranty. The part number is 89661-47160 and it is interchangeable with part number 590-50621. This Engine Control Unit (ECU) is designed for the front placement on the vehicle and has one pin terminal type.