Aeroflow Mass Air Flow Sensor block off plates are designed for use on air intake pipes that do not require a MAF sensor or with speed density tuned vehicles. It will suit all GM LS3, LS7 and All GM LT series engines (2014-on). Made from billet 6061 aluminium and available in either raw or anodized black. Includes mounting bolts and O-ring for an airtight seal.