Performance tuning is more difficult vehicles were the factory computer does not have a chip that can be easily replaced. To solve the problem JET developed a plug in module that attaches to the vehicle computer externally that can add up to 30 horsepower. The JET Module optimizes the ignition spark advance, air to fuel ratios and transmission shifting for the ultimate in power and mileage gains.
live in michigan if you use 165 thermostat in winter you freeze and have high idle in neutral. Great product have run many years. I have 305 airraid spacer and cold air kit,granatelli mass airflow,flow master40 it runs pretty good. If i cant afford highoctane fuel its as easy as dissconnecting battery and a couple wiring harness and back to stock. dont be scared highly reccomend if you want the most.