APR is pleased to present the ultimate ECU Upgrade for the Audi RS5 4.2L FSI V8.
After months of long nights and many hours of testing, developing and more testing, were pleased to offer you an ECU recalibration that is second to none. APRs 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.
APRs 4.2L FSI V8 ECU Upgrade is an expertly recalibrated engine control strategy that primarily remaps the engines air fuel ratio and ignition timing, within the factory ECU, to provide smooth and reliable power as if intended by the OEM. APRs 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, APRs calibrations allow you to take advantage of fuel quality available in your area. APRs patented EMCS functionality puts the control of your engines 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. APRs 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, APRs ECU upgrade will fill the void in an otherwise excellent car.
Acceleration Enhancements:
Beyond power and torque enhancements, APRs 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:
APRs 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:
APRs 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 vehicles throttle. The factory equipped RS5s 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 vehicles 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.
APR Stage I ECU Upgrade Calibration Report
| Stock
As Measured by Audi | Stock - 93 Octane (R M)/2
As Measured by APR | 91 Octane (R M)/2
95 Octane RON | 93 Octane (R M)/2
98 Octane RON | 100 Octane (R M)/2
104 Octane RON |
| Rev Limit | 8400 RPM | 8400 RPM | 8400 RPM | 8400 RPM | 8400 RPM |
| Speed Limit | Max Speed Limited | Max Speed Limited | Unlimited | Unlimited | Unlimited |
Peak Horsepower
(HP) | 450 HP | 450 HP | Unmeasured | 458 HP | 466 HP |
Peak Torque
(FT-LBS) | 317 TQ | 324 TQ | Unmeasured | 330 TQ | 335 TQ |
Max Horsepower
Increase over Stock |
|
| Unmeasured | 10 HP @ 3250 RPM | 18 HP @ 7150 RPM |
| Max FT-LBS of Torque Increase over Stock |
|
| Unmeasured | 16 TQ @ 3250 RPM | 16 TQ @ 2350 RPM |
APR Acceleration Tests
| Program Mode | 0-60 MPH | 0-100 MPH | 60-120 MPH | 60-130 MPH |
| 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 | 4.3 seconds | 9.8 seconds | 9.1 seconds | 11.7 seconds |
| Best Measured APR Stage I - 93 (R M)/2 Octane | 4.0 seconds | 9.1 seconds | 9.0 seconds | 11.3 seconds |
APR EMCS Programs and Features
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
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:
APRs proprietary ECU Explorer gives APRs Calibration Engineers unparalleled access to the vehicles 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. APRs ECU Explorer is capable of logging every variable found within the ECU. Its 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:
APRs proprietary ECU Composer is used for altering the engine management system. With full access to every table, map and variable within the ECU, APRs 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. APRs 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:
APRs 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 APRs patented EMCS Functions. EMCS puts the control of the engines operation at your fingertips and allows for additional features and options to be installed to your ECU.
NOTE
This item is only eligible for in-store installation.
Please contact us to schedule an appointment or for more information.
