The team at Eurocode Tuning will be out in full force with APR to provide on site flashing (at the SoCal Euro Big GTG) for the 2013MY RS5 ECUs with a $100.00 discount in pricing!!!

Regularly priced at $799.00 for a fully loaded ECU we will be offering it for $699.00* If you would like to take advantage of this special pricing and schedule and appointment for installation at the show, please give us a call at 310-294-8108 or email us at info@ecodetuning.com


*installation fee will apply




Eurocode is pleased to present the ultimate ECU Upgrade for the Audi RS5 4.2L FSI V8 by APR

After months of long nights and many hours of testing, developing and more testing, weíre pleased to offer you an ECU recalibration that is second to none. APRís extensive research and development provides you with a powerful ECU upgrade with no loss of drivability or reliability. Expect faster acceleration, improved throttle response and more power across the entire power band.

APRís 4.2L FSI V8 ECU Upgrade is an expertly recalibrated engine control strategy that primarily remaps the engineís air fuel ratio and ignition timing, within the factory ECU, to provide smooth and reliable power as if intended by the OEM. APRís ECU Upgrade is developed to work within the OEM and Tier 1 Supplier specifications for engine component stress tolerances and performance specifications. Available in octane-specific variations, APRís calibrations allow you to take advantage of fuel quality available in your area. APRís patented EMCS functionality puts the control of your engineís operation at your fingertips and allows for additional features and options to be installed to your OEM ECU.

APR Stage I ECU Upgrade

The APR Stage I ECU Upgrade gives you higher peak numbers of 458 HP/330 FT-LBS on 93 (R+M)/2 octane and up to 466 HP/335 FT-LBS on 100 (R+M)/2 octane race fuel. As much as 18 HP and 16 FT-LBS of torque are available through the power band. APRís ECU Upgrade is the best power per dollar modification for the new 4.2L FSI V8 and gives it just the extra edge these cars lack from the factory without pushing the limits. With factory-like smoothness and drivability, APRís ECU upgrade will fill the void in an otherwise excellent car.

Acceleration Enhancements:



Beyond power and torque enhancements, APRís Calibration Engineers were able to increase the acceleration rate of the Audi RS5 through other calibrations changes. Ignition delay is reduced resulting in a more responsive pedal without altering overall throttle sensitivity.

Increased Fuel Economy:



APRís Calibration Engineers paid close attention to several parameters directly related to fuel economy, especially while cruising at highway speeds. Depending on your driving style and fuel quality, you may see better miles per gallon!

Speed Limiter Removed:



APRís ECU upgrade increases the vehicle's top speed limiter for blistering sprints around the track or across the Autobahn without the speed limiter shutting down your fun!

Left Foot Braking:



APR's Left Foot Braking feature allows more control over the vehicleís throttle. The factory equipped RS5ís throttle input is disabled while pressing the accelerator and brake at the same time. Left Foot Braking, a common motorsport driving technique, allows the driver complete control over the vehicleís throttle and braking system, which may give the RS5 the edge it needs at the track. As is with all features APR adds to the ECU, this feature may be removed upon request.

Dyno Charts

APR Stage I - 93 (R+M)/2 Octane vs Stock



- Click here for HP/TQ at the wheels: APR Stage I - 93 (R+M)/2 Octane vs Stock Measured at All 4 Wheels
- Click here for HP/TQ gain over stock: APR Stage I - 93 (R+M)/2 Octane Gain over Stock

APR Stage I - 93 (R+M)/2 Octane vs Stock



- Click here for HP/TQ at the wheels: APR Stage I - 100 (R+M)/2 Octane vs Stock Measured at All 4 Wheels
- Click here for HP/TQ gain over stock: APR Stage I - 100 (R+M)/2 Octane Gain over Stock

APR Stage I ECU Upgrade Calibration Report

Stock As Measured by Audi
450 HP
317 TQ

Stock - 93 Octane (R+M)/2 As Measured by APR
450 HP
324 TQ

APR 91 Octane (R+M)/2 or 95 Octane RON Performance Mode
Program mode available, data not avaiable at this time.

APR 93 Octane (R+M)/2 or 98 Octane RON Performance Mode
458 HP
330 TQ
10 HP @ 3250 RPM
16 TQ @ 3250 RPM

APR 100 Octane (R+M)/2 or 104 Octane RON Performance Mode
466 HP
335 TQ
18 HP @ 7150 RPM
16 TQ @ 2350 RPM

APR Acceleration Tests
Data collected at the same location via a Racelogic P-Box with 93 (R+M)/2 fuel, launch control, ESP/ASR off, Dynamic mode and Sport mode. May not be comparable to data collected in other locations.

Best Measured Stock - 93 (R+M)/2 Octane
0-60 MPH - 4.3 seconds
0-100 MPH - 9.8 seconds
60-120 MPH - 9.1 seconds
60-130 MPH - 11.7 seconds

Best Measured APR Stage I - 93 (R+M)/2 Octane
0-60 MPH - 4.0 seconds
0-100 MPH - 9.1 seconds
60-120 MPH - 9.0 seconds
60-130 MPH - 11.3 seconds

APR EMCS Programs and Features
APRís patented EMCS, Enhanced Modular Chipping System, brings selectable programs and features to your factory ECU, all without the need to purchase external hardware. Other companies have attempted to imitate EMCS with clumsy external switching devices that only replace or multiply portions of a ďbaseĒ calibration. However, EMCS has the ability to completely rewrite the entire operating map data, giving each map a complete set of calibration changes. APRís EMCS features and programs modes are activated via your OEM cruise control buttons. Your cruise control will continue to function as normal.

Program Switching:



Program switching allows the user to cycle though up to four different engine calibrations and operating modes all without the need for external hardware.

Stock Mode:



By selecting stock mode, the ECU calibration is reset to the factory calibration. The engine will run exactly as it did before purchasing APR software.

APR Performance Modes:



APR's octane-specific calibrations are available for various premium and race fuels around the world. Each performance mode is a completely new calibration, altered specifically for the characteristics of the fuel quality selected.

Valet Mode:



APR's Valet Mode protects your vehicle from becoming an expensive toy for unauthorized individuals. By enabling Valet Mode, the vehicle's performance is extremely limited. Launch control is uneventful, the vehicles top speed is limited to roughly 40 MPH and the engine's redline is reduced to nearly 5,000 RPM!

Fault Code Erase:



Fault code erase allows the user to erase and reset engine related trouble codes and ECU adaptation data without using a specialty tool.

Security Lockout:



Security lockout prevents unauthorized individuals from using APR's EMCS functionality. When enabled, APR's EMCS features will appear completely invisible until a user specified 2 to 4-digit security code is entered.

Anti-Theft:



When activated, Anti-Theft prevents the engine from starting even if the factory key is used. The vehicle will be completely immobilized until a user specified 2 to 4-digit security code is entered.

How to use APR EMCS Programs and Features


B8 RS5 EMCS Program Switching and Features are operated identically to the B8 S4 shown in the video above.

To Enable EMCS:
Turn the ignition and cruise control to the on position. Do not start the engine. Ensure Security Lockout or Anti-Theft is disabled.

To Unlock the ECU or Disable Anti-Theft:
"SPEED+" is used to enter a digit and "SPEED-" is used to register the digit. Enter the first digit of the security code by pressing "SPEED+" the number of times corresponding to the first digit, then use "SPEED-" to register the digit. Repeat this step for each digit in the user defined security code. The check engine light and EPC light will flash to indicate the ECU is unlocked or Anti-Theft is disabled.

To use Security Lockout to Lock the ECU:
Hold "RESUME" on the cruise control stalk. The check engine light will blink in sets of one to three blinks indicating different features. Release "RESUME" when the check engine light is flashing in groups of three blinks per second. The EPC and CEL will blink to indicate the ECU is locked.

To Cycle through APR Programs:
Hold "SET" on the cruise control stalk. The check engine light will blink in sets of one to four blinks to indicate programs one through four. Release "SET" during this sequence to select a program. The EPC light will flash one to four times to indicate the program selected. The vehicle may be started.

To use Fault Code Erase:
Hold "RESUME" on the cruise control stalk. The check engine light will begin to blink. Release "RESUME" when the check engine light is flashing in groups of one blink per second. Fault Codes will be cleared.

To Enable Anti-Theft:
Quickly press "SET, SET, RESUME, RESUME, SET, SET, RESUME and RESUME". The check engine light will begin blinking. The vehicle will no longer start until the user defined security code is entered.


The APR Development Difference

APR ECU Explorer:



APRís proprietary ECU Explorer gives APRís Calibration Engineers unparalleled access to the vehicleís entire engine management system. Typical commercially available data logging tools, used by most tuners, only allow logging up to 12 engine-operating variables at extremely low data rates. These tools are also limited to a small, specific list of variables. APRís ECU Explorer is capable of logging every variable found within the ECU. Itís capable of logging well over 100 variables at once with data rates as high as 100 samples per second. Synchronous data logging is available for fine-tuning.

APR ECU Composer with APR Live Tuning:



APRís proprietary ECU Composer is used for altering the engine management system. With full access to every table, map and variable within the ECU, APRís Calibration Engineers are not limited to a handful of maps as is common for most tuning companies. ECU Composer takes calibration to a new level on the RS5 with APR's Live Tuning. APRís Calibration Engineers can test calibration changes with a single click of a button to instantly monitor the changes, rather than spending several minutes shutting down the vehicle to reflash the ECU. This allows a level of fine-tuning unmatched in the market.

APR ECU Assembly:



APRís Electrical Engineers have the ability to alter the code structure of the ECU to add features not available from the factory. On the highly modified end, this allows APR to add forced induction to naturally aspirated vehicle as if intended by the OEM. However, for most RS5 owners, the advantage of this ability is the addition of APRís patented EMCS Functions. EMCS puts the control of the engineís operation at your fingertips and allows for additional features and options to be installed to your ECU.

Application Guide

2012+ Audi B8 RS5 4.2L FSI V8 S-Tronic Quattro - Fully Loaded ECU* - North America - $799 (Currently on sale for $699 till 10/14/2012)
2010+ Audi B8 RS5 4.2L FSI V8 S-Tronic Quattro - Fully Loaded ECU* - Rest of World - Please contact your local Importer

*A fully loaded ECU includes your choice of 4 APR Programs (Stock, Valet & Octane Specific Performance Modes) and all APR Options (Fault Code Erase, Security Lockout & Anti-Theft).

Two Ways to Purchase

Locate an APR Dealer:



Use the APR Dealer Locator Tool to find an APR Dealer near you. The APR Dealer will take care of removing and sending your ECUs to our headquarters and your ECU will be sent back typically the same day as we receive it. In the near future, APR Dealers will have the ability to upgrade your ECU on site while you wait!

Mail us your ECU (USA Only):



Remove your ECU and mail it directly to APR. We will upgrade your ECU and send it back typically the same day as we receive it. To remove your ECU, check for a removal guide in our Customer Support section, or give us a call. Then simply fill out an APR ECU Order Form and youíre ready to mail in your ECU.

Security, Warranty and Money Back Guarentee

All APR ECU Upgrades are fully encrypted to prevent theft of our valuable and proprietary coding information by lesser companies.

30 Day Money Back Guarantee:



All APR ECU Upgrades include a 30-day money back guarantee with no questions asked. If for any reason you are dissatisfied with the APR ECU Upgrade, return to your place of purchase for a full refund, provided you are within the 30 day period from the time of your initial purchase. Labor or shipping charges are not included in the guarantee and are at the discretion of the place of install.

Limited Lifetime Warranty:



All APR ECU Upgrades include a limited lifetime warranty against defects in the software, and to provide free updates and reflashes as they become available. Labor or shipping charges are not included in the warranty and are at the discretion of the place of install.