Get more torque and more horsepower from your MQB Audi A3 – significantly more – without turning a screw or a bolt. The Eurodyne Audi A3 Reflash with Flash Tool can increase your engine’s power output by at least 45 horsepower and 50 ft/lbs of torque – without race fuel – by changing the tune.

Those are the base results of the Eurodyne tune for 91 octane fuel. Once you reflash, you’ll get faster 0-to-60 times and quarter-mile runs, and you’ll have the extra punch you crave when you jump on the throttle exiting turns or between stoplights.

Look at the power increases Eurodyne has documented:

Stage 1 91 octane: 45 hp and 50 ft-lbs torque
Stage 1.5 91 octane: 70 hp and 70 ft-lbs torque
Stage 1.5 93 octane: 87 hp and 90 ft-lbs torque
Stage 2   93 octane: 99 hp and 116 ft-lbs torque

Except for Stage 2, which requires a high-flow downpipe such as the USP downpipe, you’ll do all that with completely stock hardware. You’ll turn the car you love driving every day into an absolute beast. When you buy the Eurodyne Audi A3 Reflash from us, the only tool you’ll need to complete the tune comes with it – the Flash Tool. This small electronic module lets you erase the standard programming of an A3's Electronic Control Unit, then replace it with high-performance software.

Reflashing with Eurodyne does not require removal of the ECU. No wrenches. No wire nuts. No screwdrivers. To complete the tune, you’ll need a Windows laptop with an XP Service Pack 3, Windows 8 or Windows 10; WiFi access; and about half an hour to download and install the program. The flashtool plugs into the OBD-II diagnostics port beneath your instrument panel. An included USB cable links the Flash Tool and laptop.

Convenience and savings come from the do-it-yourself ECU upgrade capabilities of the Eurodyne Audi A3 Reflash with Flash Tool. As long as you have the PC, WiFi, cable and Flash Tool, you’re good to go. Forget having to visit a software dealer to switch setups. You can go from one state of tune to another – from 91 to 93 octane, for instance – using the Flash Tool and your laptop. You can even return your ECU to complete factory tune before servicing by a VW dealer.

*Due to the nature of software products and the inability to verify if your car was returned back to factory software this product is non-returnable.