• Read button indicates current program setting to reduce confusion
• Allows the full benefits of 100 octane fuel
• Valet option to put the vehicle in a significantly detuned state
• Kill option designed to make the car inoperable
• Stock option makes trips to the dealer less stressful

• Bells and whistles add up to a nice chunk of change

The 2010 Audi A4 2.0 TFSI comes with 211 hp and 258 lb-ft of torque, a nice increase from the 150 hp of the 1997 A4, but it still falls a tad short. The GIAC Stage 1 Software Upgrade eliminates that shortcoming and improves the 2.0 TFSI in both power and drivability.

The difference was instantly noticeable upon accelerating through first gear. Unlike the factory software, where power falls off at 5000 rpm, the GIAC Stage 1 software pulls strong all the way to 6500 rpm. This is especially helpful off the line, and the augmented powerband continues through the remaining five gears. This is especially important because if you have ever driven the A4 Quattro and found yourself in third gear around 2,000 rpm and tried to accelerate, the response is not great and the lack of power is frustrating. The GIAC software allows easy acceleration in almost any situation with the power readily at hand. Initial concerns over whether or not the GIAC chip would damage Audi's two-stage valve lift system were laid to rest. In every gear from tip-in to full throttle, the power delivery is smooth and lag-free. Unlike some tuned turbo cars where the gas pedal positions are over exaggerated, the power delivery based on pedal position is balanced to give the driver full control of the vehicle powerband.

The combination of the GIAC Flashloader Handheld and optional 100-octane performance program makes the perfect solution. The setup allows you to drive the car during the mundane work week, and when you get that itch for more power you simply fill up with a few gallons of 100 octane, push a button, and quickly get an additional 14 horsepower and 15 lb-ft. This is by far the best horsepower per dollar upgrade available.

VP100 RACE FUEL $23.97/gallon
MSRP TOTAL $823.97
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