This genuine 1999 Ford Mustang Air & Fuel Delivery Harness is the perfect solution for restoring your classic pony car's engine bay to factory specifications. Designed specifically for the '99 model year, this OEM-quality wiring harness ensures reliable connections between your fuel injectors, mass airflow sensor, and throttle position sensor, delivering the precise electrical signals your 4.6L V8 or 3.8L V6 engine needs for optimal performance. Whether you're dealing with rough idle, poor fuel economy, or intermittent misfires caused by corroded or damaged wiring, this direct-fit replacement harness eliminates the guesswork and potential shorts that come with splicing individual wires. Built to withstand the heat and vibration of the engine compartment, this harness features factory-spec connectors and proper wire gauge throughout, making installation straightforward for both professional mechanics and dedicated DIY enthusiasts looking to keep their fourth-generation Mustang running strong for years to come.