APR - High Performance Development for Audi Vehicles

Audi B7 S4 2006+ ECU Upgrade

The ultimate chip upgrade for the S4 4.2 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 increases in throttle response and a smoother, more powerful top end.

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 S4 4.2 ECU can be upgraded with either the use of a soldered in EMCS module, or 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*
2006	S4	4.2	**	352hp/312lb-ft	Y	$599.00
Due to many variations, ALWAYS refer to the ECU part number in your car. *Speed and Rev Limt changes only.

*For a limited time only, this software includes ALL EMCS programs and options.
These options include:

Stock Program
91 Chipped Program
93 Chipped Program

Valet Program

Fault Code Erase
Throttle Body Alignment
Security Feature
APR AntiTheft

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

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? 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:

EMCS Soldered Circuit Board and
Programmer End

EMCS Home Programmer

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, and is only available on cars that have a soldered in EMCS module.

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.

How to Purchase

There are several options for obtaining your chip. You may have your ECU modified at any of our Authorized Distributors. The second option is to send the ECU directly to us to have it modified. Typically your ECU is returned the same day we receive it. For ECU removal instructions see our Customer Support page.

If you're sending your ECU in to us, please print out and complete the order form below. We are unable to do DirectPort programming on any ECU sent in to APR, only a soldered in chip upgrade. Be sure to indicate which programs you would like to purchase, as well as the other information listed. For information on the program options, see below under the EMCS heading.

APR ECU Modification Order Form(119K pdf)