"There is only one APR."

For years now, no one has been able to simulate what APR's EMCS does. Our staff of 5 engineers and 20+ employees has broken the mold of "performance tuning" by creating new technology. APR has revolutionized "chipping" with innovation not matched in the industry. There is only one tuner that offers software so refined and complete with so many options. There is only one APR.

"Extra steps must be taken."

From the development process to the technical features, no other tuner offers the same innovation and refinement that you'll get from APR. Many months have been spent developing the best chip available for the RS6. We go far beyond the traditional steps of just "raising the boost" and "advancing the timing". Extra steps must be taken. Typical data logging software used by most tuners is capable of capturing 4 variables at 3 samples per second. APR's proprietary data acquisition software captures as many as 30 variables at around 22Hz. That's an incredible 55 times more data gathered per second.

"...extra steps other tuners can't take."

To dramatically increase power and maintain factory drivability there are many factors to be considered. One of note is the internal boost-controller, which requests boost according to load measured by the ECU. Inconsistencies and "surging" are things you will not feel in APR software because we properly match the cars actual boost produced with the load-based requested boost from the ECU. This is where "55 times more data" goes from intangible numbers to a smoothness you can feel. It helps duplicate the characteristics normally found only from the factory. Such precise matching you will not find in other software. These are extra steps other tuners can't take.

"...any tuner in any market anywhere in the world."

The APR RS6 upgraded chip comes EMCS equipped (Enhanced Modular Chipping System). The "extra steps" don't stop with the software development process. Our chipping hardware development far surpasses anything else offered by any tuner in any market anywhere in the world. We have left the traditional method of re-flashing a chip in the 90's and have moved on to the next generation of chip tuning. No longer are you limited to replacing one program with another program. With our EMCS, you can replace one program with four programs and several ECU features. The APR RS6 ECU upgrade also includes new programming for the transmission computer in the car, raising the shift points by 200rpm.

Year	Model	Engine	91 Octane Chipped	93 Octane Chipped	DirectPort Available	Price
2003	RS6	4.2T	512hp/529lb-ft	520hp/538lb-ft	N	$2899.00

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:

All of these features come standard with the APR RS6 ECU upgrade and each mode can be selected at the touch of a button.

Year	Model	Transmission	Part Number	Price
2003	RS6	ALL	U1100152	$2899.00

 APR ECU Modification Order Form(119K pdf)