Description

Overview

We're excited to announce our Engine Control Unit (ECU) Upgrades are now available for the RS Q8 4.0 TFSI V8 engine with the Bosch MG1 ECU! Expect massive gains with up to 685-767 HP and 731-804 FT-LBS of torque on tap, depending on octane, from this simple software upgrade. APR's ECU Upgrades are the best dollar-per-horsepower modification one can make to improve engine performance. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR's optimization of the factory engine management system to take full advantage of the engine's capabilities, without needing any end user adjustment. The ECU Upgrades are available with various features and supported octane levels and each stage is compatible with most typical bolt-on modifications. The software is installed to the vehicle's factory ECU through the OBD-II port once the ECU is unlocked, resulting in a clean and headache-free install. Furthermore, for those looking for tuning with a limited powertrain warranty, APR Plus has you covered!

Fits 2020-2023 Audi RS Q8

Features:

Delivers up to 685-767 HP with 731-804 FT-LBS depending on octane
Max gains of +112-210 AWHP and +145-225 AWFT-LBS depending on octane
Supports 91 AKI, 93 AKI, 100 AKI, and 104 AKI fuel grades
Optional factory term limit matching limited powertrain warranty with APR Plus
Quicker acceleration
Speed limiter removed
Standing RPM soft limiter increased
Left-foot braking / brake boosting added
Properly rescaled performance gauges
Optimized thermal management and protection
Optimized launch control strategy for faster response
Optimized driveline protection during launch
No hardware required (Software only)
Supports standard bolt on modifications
Eliminated the need for a TCU upgrade to achieve full torque
Free lifetime updates
Direct OBDII port flash (No ECU removal)

Important fuel quality information
Important fuel quality information

Find your boxcode and revision
Find your boxcode and revision

ECU Order Form
Select VW/Audi MG1 under unlock type

APR Plus Warranty Booklet
APR Plus Warranty Booklet

Only use fuel equal to or higher than specified. Never use a lower octane fuel. Always follow our fuel guide, especially with race fuel and Ethanol, where available. Dynos are for reference only. Results will vary. Contributing factors include the vehicle condition, vehicle setup, dyno type, dyno setup, environmental factors, fuel quality, and more. When describing fuels, the North American Region (NAR) uses the Anti-Knock Index (AKI), (RON+MON)/2, or (R+M)/2. The Rest of the World (ROW) uses RON. RON is Research Octane Number and MON is Motor Octane Number.

Our new suite of MG1 ECU software comes after months of extensive research and development that is typically absent from the aftermarket. Our upgrade makes the engine more powerful and more exciting. We’ve extensively calibrated the system to work flawlessly on the track, while retaining safety routines to protect your engine in the most demanding scenarios. This was all made possible by our engineering team's pursuit of perfection. Development vehicles were outfitted with additional sensors, including turbo shaft speed sensors, thermocouples, transducers, and more, along with our high speed direct RAM logging equipment, to feed valuable data to the team for analysis. After thousands of hours of testing and tuning we created new calibrations that are fine tuned for several octanes and contain hundreds of map changes, with a vast array of safety features built in.

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.

APR Stage 1

The APR Stage 1 ECU Upgrade is the first step towards tuning your engine. It produces up to 685-767 HP and 731-804 FT-LBS of torque with gains as high as +112-210 HP and +145-225 FT-LBS of torque at the wheels.

APR Stage 1 is available for 91 AKI, 93 AKI, 100 AKI, and 104 AKI in North America.

Horsepower and Torque Dyno Charts

STAGE	HP	TQ	MAX GAIN	MAX GAIN
Stock As Reported by Audi	591 HP	590 FT-LBS
Stock As Measured by APR	597 HP	588 FT-LBS
APR PLUS
91 AKI / 95 RON	685 HP	731 FT-LBS	+112 HP	+145 FT-LBS
STAGE 1
91 AKI / 95 RON	685 HP	731 FT-LBS	+112 HP	+145 FT-LBS
93 AKI / 98 RON	710 HP	751 FT-LBS	+146 HP	+168 FT-LBS
100 AKI / 104 RON	752 HP	786 FT-LBS	+191 HP	+206 FT-LBS
104 AKI / 108 RON	767 HP	804 FT-LBS	+210 HP	+225 FT-LBS

The APR Difference

Who we are - We’re a global automotive engineering firm nestled in Opelika, Alabama. Our 80,000ft² state-of-the-art facility is home to some of the best engineers in the industry, who have mastered hundreds of engine management systems. We have multiple engine and chassis dynos, and the resources necessary to create our ECU Upgrades in-house, from the ground up! We're not a new company either. We've been around since the 90's and we have a strong financial backing to ensure we'll be here to support you for decades to come!

What we do - We optimize everything to make your engine more powerful. We adjust air-fuel ratios, advance ignition, increase boost pressure, alter cam positions and lift profiles, and more, all depending on the type of engine and management system, of course! We don’t take shortcuts, and we don’t take risks. We do it the right way.

How we differ - With our proprietary calibration and direct ram access data logging tools and operating system code changes, we’re able to make some of the strongest and fastest ECU upgrades, without needing costly end user adjustments. We work with the ECUs intelligent modeling and closed-loop systems, and beta test in multiple environments to create upgrades that work no matter where you drive!