The Engine Computer for Ford Mustang 88-90 is an Engine Control Unit (ECU) that is designed specifically for these model years. It features a pin terminal type and easy installation, making it a convenient choice for those looking to replace their current ECU. This product is not a vintage part and does not have any California Prop 65 Warning, as it is made of aluminum and does not pose any obvious health risks when installed in a car. Overall, this Engine Computer is a reliable and efficient choice for Ford Mustang owners looking to upgrade or replace their current ECU.