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The Stage 1 and Stage 2 Performance Chips manufactured by JET brag of their Dynamic Spectrum Tuning that provides additional power gains across the whole power band, not just at full throttle. These Performance Chips perfectly fits to your 1994 Jeep Cherokee XJ & Grand Cherokee ZJ. Every performance chip is constructed with point by point air or fuel ration together with an advance ignition. They also include other tuning points that provides even higher performance boost of up to 25 horsepower. Buy your own performance chips now at very affordable price.