{"product_id":"4-bar-map-sensor-5","title":"4-Bar MAP Sensor","description":"The Genuine GM 12643955 is a 4-Bar Manifold Absolute Pressure (MAP) sensor, engineered to provide accurate boost readings up to 44 psi. This genuine factory part supersedes the GM part number 25203477, offering enhanced durability and precision for forced induction systems.\n\nThis sensor is designed as a direct-fit replacement for factory 1-bar or 2-bar MAP sensors on compatible GM vehicles, eliminating the need for cutting or splicing wires. It is particularly suited for intake manifolds equipped with \"LS3\" style MAP sensor ports. The sensor is also noted as a direct-fit for GM 6.6 L Duramax engines and is used on 2011-2016 Chevy\/GMC 2500HD\/3500HD trucks with the 6.6-liter Duramax diesel engine.\n\nWhile designed for ease of installation on specific GM platforms, it is important to note that utilizing a 4-Bar MAP sensor often requires corresponding PCM tuning and proper sensor data scaling in kPa to ensure correct calibration and operation. This sensor is not typically considered a performance part in itself but rather an upgrade component that enables higher boost monitoring capabilities when used in conjunction with other performance modifications and tuning.\n\nThis part is listed as having universal fitment in some contexts but is otherwise specified as a \"Specific\" vehicle fitment type. It supersedes GM part number 25203477.","brand":"GM","offers":[{"title":"Default Title","offer_id":52664175165752,"sku":"12643955","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687545622.jpg?v=1784334719","url":"https:\/\/store.motormia.co\/products\/4-bar-map-sensor-5","provider":"MOTORMIA","version":"1.0","type":"link"}