APR Audi A3 ECU Upgrade

APR Audi A3 ECU Upgrade
Availability: Contact us for availability


The ultimate chip upgrade for the A3 2.0T FSI engine is available from APR. After months of long nights and many hours of dyno work we are pleased to offer you chip tuning that is second to none. We have worked hand in hand with many customers to deliver a chip that works. Expect huge increases in low-end torque, improved throttle response and a smoother, more powerful top end.

Stage I ECU Upgrade

Not only does our Stage I software give you higher peak numbers of 252 horsepower and 303lb-ft. of torque, but also gains of up to 61 horsepower are available at lower rpms! This software is the ultimate upgrade for the new A3 and gives it just the extra edge these cars lack from the factory, without pushing the limits. With factory like smoothness and drivability, the new power will fill the void in an otherwise excellent car.

APR chips are available in an octane specific version for the octane of gasoline that you typically run in your car. The power that the chip makes also depends on which ECU is in your vehicle. The A3 2.0T ECU can be upgraded via DirectPort Programming. For more information on DirectPort Programming, please see the DirectPort page. For more information on the ECU upgrade, please see the charts below.

Year Model Engine 91 Octane Chipped 93 Octane Chipped DirectPort Available Price

2005-06 A3 2.0T 246hp/282lb-ft 252hp/303lb-ft Y $599.00

All APR chip upgrades use encryption, which serve several purposes. First, it keeps prying eyes out of our software and prevents lesser companies from copying the chip and degrading the product. Secondly, the encryption prevents the dealer from flash programming the ECU. Also, all APR software is undetectable to a dealers VAG diagnostic tool.

All APR chip software comes with lifetime free updates. There is also a lifetime warranty against defects in the software. All chip upgrades have a 30-day Money Back Guarantee.


EMCS EMCS is available for this car. EMCS is APR's revolutionary patent pending Enhanced Modular Chipping System. EMCS is an industry leading technology that brings many new features to the automotive enthusiast. This technology was developed exclusively by Audi Performance & Racing, LLC and demonstrates APR's continued commitment to lead the industry with the most technologically advanced products available.

Want chipped mode? Want to be able to switch back to your stock settings? Want a race mode to run 100 octane fuel at the track? How about a valet mode that limits power? EMCS is the lone technology on the market that can give you all of these options. No changing of the chip or ECU is required. These programs are available at the touch of a button.

APR has taken your cruise control buttons and utilized them for this function. Your cruise control will continue to function as normal, but will give you the ability to scroll through the programs you have purchased on your APR chipped ECU. The procedure is simple and involves only two steps.

Step 1: Press and hold the "set" button on your cruise control. After approximately five seconds, the "check engine" light on your dash will begin to blink once per second. This will tell you that you are activating program one. This blinking sequence will continue for approximately five seconds.

After this five second interval, the "check engine" light will begin blinking twice per second. This will indicate that you have activated the second program. This process is continued to access any remaining programs you may have purchased. (three blinks = program three, four blinks = program four).

Step 2: Once you have activated the desired program, simply release the "set" button. The "check engine" light will stop flashing. Turn the ignition key off for 10 seconds, turn the key back on, and you will be locked in that program until you change it again.

It's that simple.

APR's EMCS is a truly modular system that allows for future enhancements and features to be added as they are developed without the need for additional hardware. EMCS makes the following advanced features possible:

FlipSwitch Enables you to swap between two or more engine programs on-the-fly using the cruise control stalk. All cars have stock and standard chipped program versions available. Valet, race-gas, and other specialty programs are available for some models.

Fault Code Erase/Throttle Body Alignment (FCE/TBA) Fault Code Erase allows you to erase and reset engine related trouble codes without having to use a specialty tool. Throttle Body Alignment allows you to manually perform throttle-body adaptation.

Security Lockout Prevents unauthorized personnel from accessing EMCS functions. The user may select any 1 to 4 digit security code. The security code is entered using the cruise control buttons.

Anti-Theft Anti-Theft can render your car immobile to thieves, even if the there is an attempt to start the car with your own key! For more information about Anti-Theft, click here.

EMCS PRICING All APR chips now include EMCS hardware. EMCS options are available at an additional cost over the normal price of a chip. Please remember that even if you do not purchase any of the following options, you will still be able upgrade to these options from most any internet accessible computer at a later date. Above the price of the chip for your car, the following options can be added to your ECU:

FlipSwitch Technology

For a total of 2 programs $149 (i.e. - Stock and Chipped) For a total of 3 programs $219 For a total of 4 programs $289 Other Available Options

Fault Code Erase/Throttle Body Alignment (FCE/TBA) $59 Security Lockout $59 Anti-Theft System $199

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