JMS Mustang Analog Mass Air Modifier (1988-1995)

JMS Chip & Performance is revolutionizing Ford mass air fuel injection systems with the Mass Air Modifier for 1988-2014 Ford vehicles including: Mustang, SVT Cobra, Boss 302, Shelby GT500, Focus, F150 and Lightning Trucks. This simple and easy to use in-line MAF tuning device is designed to accurately scale and filter the mass air signal on all MAF equipped Ford cars, trucks and SUV's.