Will Jet Performance tuning void my warranty?
No. Federal law prohibits a dealer from voiding your warranty just because you are using aftermarket speed equipment, with only two exceptions: The warranty can be voided if the aftermarket part causes damage or if it adversely affects the emissions or the emissions system.

Are Jet Performance chips emissions legal?
Yes. All Jet Performance chips and most modules are emissions legal in all 50 states. The California Air Resources Board (CARB) has issued executive order numbers D-234 through D-234-6, covering all Jet Performance power chips, making Jet Performance chips the most complete line of high-performance chips that can legally be sold, installed, and driven in the state of California. Because of CARB's very rigid rules concerning exhaust emissions, the EPA accepts CARB approval as evidence that an aftermarket part is clean and suitable for use in all other states.

If Jet Performance power tuning is so great, why didn't the factories do it that way?
The factory program is designed for the average driver and is set to take a wide variety of operating conditions and driving styles into consideration. Consequently, stock calibrations aren't set to provide maximum power because they have to accommodate drivers who may use poor-quality gasoline. For the real high-performance driver, premium-grade gas is a must. At Jet Performance, the spark and fuel curves are optimized over the entire rpm band from just off idle right up to the red line for maximum power and performance from the best gasoline.

Will power tuning hurt my engine in any way?
No. Best power always occurs when air/fuel ratio and the spark tuning have been optimized for maximum power, meaning maximum push on the piston during each power stroke. Damage occurs if the air/fuel mixture is too lean, meaning that there is not enough fuel for the amount of air in the cylinder. This results in excess super-heated air, which can cause burning of valves and pistons, and will also induce detonation (which can break pistons, etc.) Relative to spark timing, too much advance will cause detonation, which reduces power and can also damage parts, exactly as a lean mixture does. When you finish installing Jet Performance on your vehicle, your engine will run at maximum efficiency yet safely distanced from possible damage due to leanness or excessive spark advance.

How will Jet Performance power tuning affect my gas mileage?
Jet Performance power tuning does not alter your truck's calibrations in any way that would hurt fuel economy. Fuel economy will remain virtually the same or may even improve (depending on specific driving patterns) unless the vehicle is driven in a spirited manner (lead foot). For trucks that tow, Jet Performance power tuning is generally closer to the better fuel economy than the stock tuning. So in addition to power gains, a vehicle that tows with Jet Performance installed will often exhibit better mileage than one with stock tuning.

Does Jet Performance remove the speed and rev limiters?
No, the Jet Performance chip is designed to upgrade the fuel and timing of your vehicle, creating more torque and horsepower.

• Quickly adds up to 30 hp
• Provides ultimate power tuning
• Point-by-point air/fuel, ignition advance, transmission, and various other tuning points
• Provides performance gains and, in some cases, improved fuel economy
• Installs quickly and easily

Get the most out of your vehicle with the Jet Performance Chip Module. Unleash the best in your Ford truck!