Fits the 1990-1991 1.6 no PS no AC up to VIN#209445
The Jackson Racing Boost Upgrade for your Mazda Miata MX-5 gives your supercharged Miata a healthy shot of adrenaline! By spinning the supercharger faster, boost pressure is increased. The result is up to a 15-20% increase in horsepower and torque! All kits include boost crank pulley, high flow fuel pump, belt and additional fuel management electronics. Boost upgrades DO NOT work with PowerCard tuned systems. A Jackson Racing Ignition Timing Controller (part# JRG-999-490)must be used with this Boost Upgrade to avoid engine damage. Not CARB approved.
** SORRY the Miata Jackson Racing Supercharger 1990-1991 Boost Upgrade is DISCONTINUED by Jackson Racing **