APR ECU Upgrade** - 2.5T EA855 EVO for Audi 8V RS3, 8S TTRS

Overview

Features:

• Horsepower - More horsepower throughout the whole rpm band
• Torque - More torque throughout the whole rpm band
• Warranty - APR Plus is available, providing a factory term limit matching limited powertrain warranty
• Program Switching - Change programs and access features with your cruise control stalk
• APR Mobile - Change programs and access features with your smart device
• Anti-Theft - Password protects driving the vehicle
• Security Lockout - Password protects program switching
• Fault Code Erase - Resets ECU fault codes and adaption on the fly
• Stages - Multiple performance levels depending on installed hardware
• Low Grip - Multiple profiles designed to enhance launching in low and high grip situations
• Fuel Grades - Multiple octanes from which to choose
• Ethanol - Ethanol support from E60-E85 for maximum performance
• Acceleration - Accelerate faster with more power and reduced throttle lag
• Linear Throttle - Pedal maps adjusted for a more linear feel
• Brake Boosting - Left foot braking or brake boosting added
• Rev Limiter - Increased redline for higher revving
• Standing Limiter - Increased standing limiter for higher revving at idle
• Speed Limiter - Go as fast as you want with the speed limiter out of the way
• Motorsport Limiter - With the soft limiter removed, you‚Äôll get full power right up to the hard, ‚Äúbap bap bap‚Äù redline fuel cut
• Auto Start/Stop Inversion - Auto Start/Stop defaults to the off position
• Exhaust Crackle - Multiple exhaust crackle profiles including factory, mild, and aggressive all with mode switching and component protection
• Exhaust Flaps - Enhanced power delivery and drivability through recalibrated exhaust flap actuation
• Added Safety - Additional safety features and protection modes added
• Boost Gauge - The factory boost gauge displays accurate boost and reacts more quickly
• Power and Torque Gauges - The factory power and torque gauges are accurately rescaled
• Optimized Cold Start - Stage 2 features an optimized cold start that will surely please your neighbors
• Economy - While cruising, or driving normally, your fuel economy may benefit from our optimized calibration
• Flash Counter - Flash counter does not increase with each flash
• Direct Port Programming - Clean and easy install through the OBD II port without removing the ECU
• Free Updates - Get free updates for life
• Guarantee - 30 day money back guarantee

APR World Class Calibration Expertise

Tuning 101:

The 2.5T engine uses a Bosch MED 17 ECU for engine management. Basically, it’s a computer that tells the engine how to operate. Tuning software, like the APR ECU Upgrade, tells the engine how to make more power. It does this by running more boost pressure, optimizing the cam shaft positions, adjusting the air/fuel ratio, advancing ignition timing, and more.

A Better Engine Management System:

The 2.5T’s ECU is incredible. Without the driver knowing otherwise, the ECU makes intelligent adjustments to the engine’s operations to keep it running smoothly. Unlike ECUs found in many other makes and models, when properly tuned, the ECU eliminates the need for custom tuning to maximize output, even when weather conditions change dramatically.

How APR Differs from the Competition:

The ECU is powerful, but extremely difficult to master. Without mastery, the ECU must be simplified, removing what makes it so desirable. The result is an incomplete product that often requires end user adjustment to maximize output in limited scenarios. On the contrary, APR’s Engineers spent the better part of a decade mastering the ECU to unlock its full potential. With complete access to the thousands of maps, tables and variables within, as well as a high-level understanding of how it works, APR’s Engineers were able to take advantage of everything the ECU has to offer. Power is maximized in nearly all scenarios, eliminating the need for end user adjustments. High performance operational modes are enabled and calibrated to deliver smooth daily driving, with a snappy and responsive throttle during moments of spirited driving. Mastery of the boost control system makes for an impressively predictable driving experience as the turbo spools quickly, delivering instant power, while torque-by-gear helps with traction control and protects the engine from being lugged out in tall gears. Lastly advanced high-output protection routines are enabled, allowing the ECU to make constant adjustments to airflow and fuel to cool and protect the engine, all without the driver knowing otherwise.

Extreme Testing

APR’s ECU Upgrade has been full tested for the better part of a year prior to a public release. This includes summer and winter weather testing on multiple continents, high and low altitude testing, extensive track testing at multiple road courses, extensive drag strip testing and extensive road and daily driving testing. APR’s test vehicles are full instrumented with multiple sensors, including pre and post intercooler temperature and pressure sensors, pre and post turbine temperature and backpressure sensors, pre and post catalyst temperature and pressure sensors, and multiple pressure sensors throughout the intake system. APR test vehicles have seen over 700 HP in various configurations, on the stock engine internals, and have set multiple world records, including 10.5 second stage 1 quarter mile passes, and 9 second stage 3 passes.

APR ECU Upgrade Stages 

Our ECU Upgrades are available in multiple configurations. Installation of additional performance hardware, such as an intercooler or intake systems, may provide further performance improvements. Each stage includes optimizations to the factory boost gauge making it react more quickly and corrections to the power and torque gauges to match the increased output. Furthermore, we’ve added left foot braking, removed the speed limiter, raised the rev-limiter and added a motorsport limiter, reenabled the crackle on models where it was removed (2019+), adjusted the factory crackle to protect the components on Stage 1 and 1+ and enabled in more scenarios on Stage 2, retuned the exhaust flap actuation for the best performance and sound in multiple modes, optimized high altitude mappings, retuned the throttle for better response, and completely optimized the driving experience for street and track use making for a much more enjoyable driving experience!

APR Stage 1

The APR Stage 1 ECU Upgrade is the first step towards tuning your engine. It produces up to 459-542 HP and 451-500 FT-LBS of torque. This stage has optional high and low grip modes designed to reduce wheel spin and aid in 60 FT and 0-60 times depending on surface prep. APR Spark Plugs are recommended.

APR Stage 1 is available for 91 AKI, 93 AKI, 100 AKI, 104 AKI and E60-E85 Ethanol in North America, and 95 RON, 98 RON, 102 AKI, 104 AKI, 108 AKI and E60-E85 Ethanol in the Rest of the World.

APR Stage 1 Plus

The APR Stage 1+ ECU Upgrade is the next step towards tuning your engine. It produces up to 493-569 HP and 454-520 FT-LBS of torque, depending on octane. Use this tune with the APR Turbo Inlet. This stage has optional high and low grip modes designed to reduce wheel spin and aid in 60 FT and 0-60 times depending on surface prep. APR Spark Plugs are recommended.

APR Stage 1+ is available for 91 AKI, 93 AKI, 100 AKI, 104 AKI and E60-E85 Ethanol in North America, and 95 RON, 98 RON, 102 AKI, 104 AKI, 108 AKI and E60-E85 Ethanol in the Rest of the World.

APR EMCS Programs and Features

APR’s Enhanced Modular Chipping System, (EMCS), brings selectable programs and features to the factory ECU, without the need to purchase external hardware switching devices. EMCS has the ability to completely rewrite the entire operating map data within the ECU, giving each program mode a completely different set of calibration changes. On this platform, this is contrary to the industry norm of capping limits, using multipliers, only swapping portions of a base calibration, or relying on knock activity to lower output. APR’s EMCS features and programs modes are activated via the factory OEM cruise control buttons, and optionally through APR Mobile. The vehicle’s cruise control will function normally while driving.

To learn how to activate the programs and features, choose the vehicle's cruise control type from APR EMCS Owner's Manual.