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Silky smooth drivability, with gobs of power everywhere. This software upgrade really gives the heavy A4 sedan a nice kick in the pants with a dyno verified 31 crank horsepower and 28 crank torque increase with S-chip and 41 crank horsepower and 75 crank torque increase with X-chip, as measured on our AWD Mustang chassis dyno, on 93 octane pump fuel. That's an incredible 250hp and ~260tq at the crank on S-chip and 260hp and 305tq at the crank on the X-chip!

Single flash programs only available at this time, with switching capability between race fuel, stock, valet, and security kill programs soon to be released.

Special Note Regarding Fuel Pumps on the 2.0T: There is some debate regarding the performance effects of the high pressure fuel pump, found in the engine bay and required to produce the extremely high fuel pressures of the FSI system. The factory has superceded the high pressure pump part number from 06F127025B to 06F127025F. There is no definite cutoff date when cars began coming equipped with the 06F127025F part number, and the only real way to tell which pump your car has is to remove the engine covers and look at the part number on top of the high pressure pump. On the B7 chassis A4, the pump is located near the firewall at the end of the fuel rail as in the below picture. On all other 2.0T cars, it is found at the end of the fuel rail towards the driver side front of the car.

If your vehicle is equipped with the old part number pump 06F127025B, we recommend using the Sport Flashloader chip program available for your vehicle to prevent surging issues, especially if you have an aftermarket high flow cat. GIAC has done extensive testing on multiple 2.0T vehicles and has found a correlation between surging with higher boost levels with the old pump number. If your vehicle is equipped with the new part number pump 06F127025F, you can opt for the X-Chip Flashloader file, no matter what exhaust system is used.

If your vehicle is equipped with the old part number pump, there are very limited new part number pumps available for purchase at this time. There is also the possibility of getting the new pump installed under warranty free of charge. Contact your VW/Audi dealer for more information.<ul><li><a href="http://www.awe-tuning.com/pages/shared/part_detail.cfm?PMaI=1&amp;PMoI=35&amp;PEI=25&amp; PP=b7_a4_20t_chips.cfm&amp;PPT=Chips&amp;IL=b7chip ">http://www.awe-tuning.com/pages/shared/part_detail.cfm?PMaI=1&amp;PMoI=35&amp;PEI=25&amp; PP=