The ultimate chip upgrade for the B6 A4 1.8T 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

Stage I software gives you an honest 215 hp (161Kw) and 245 ft lbs (333Nm) of torque. This software is the ultimate upgrade for the new B6 A4 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.

Stage I+ ECU Upgrade

Stage I+ software, along with larger fuel injectors, provides even more horsepower and torque, raising the output to 235 hp (175Kw) and 275 ft lbs (372Nm), respectively. While not an extreme upgrade, the Stage I+ gives the A4 a bit more performance without sacrificing drivability or smoothness. For optimal results, our cat-back exhaust system is highly recommended with the use of the Stage I+ system.

S-Line Stage I ECU Upgrade

Stage I software is now available for the higher output A4 S-line. Audi have equipped this car with slightly larger injectors, a little bit bigger turbo, and an extra intercooler, this allows us to provide even more horsepower and torque, raising the output to 232hp (173Kw) and 265 ft lbs (360Nm), respectively. This upgrade retains the silky smooth power delivery. For optimal results, our cat-back exhaust system is highly recommended with the use of the Stage I system.

All APR chip software comes with lifetime free upgrades. There is also a lifetime warranty against defects in the software or soldering. 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 go off, and you will be locked in that program until you change it.

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.

User Reprogramming and Reconfiguration
Gives the user the ability to reprogram their ECU with the latest software updates and to reconfigure their ECU for different preferences or features. This function requires the optional programming adaptor.

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: