APR ECU Upgrade - 2.9T EA839 V6 (B9) (RS4/RS5)

Overview

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!

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
• Stages - Multiple performance levels depending on installed hardware
• 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
• Launch Control - Adds a new launch control strategy for better launches with more driveline protection
• 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
• Auto Start/Stop Inversion - Auto Start/Stop defaults to the off position
• Exhaust Flaps - Enhanced power delivery and drivability through recalibrated exhaust flap actuation
• Added Safety - Additional safety features and protection modes added
• Economy - While cruising, or driving normally, your fuel economy may benefit from our optimized calibration
• 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
• Direct Port Programming - Clean and easy install to the factory ECU without opening the case
• Free Updates - Get free updates for life
• Guarantee - 30 day money back guarantee

Specs

Brand	APR
Engine Aspiration	Turbocharged
Engine Configuration	V6
Engine Displacement	2.9L
Engine Family	EA839
Engine Orientation	Longitudinal
Fuel Type	Gasoline
Market	NAR
	ROW
Product Type	ECU Upgrade
Part Number	ECU-29T-EA839-B9

APR ECU Upgrade Stages

Each stage includes several adjustments and features to make the driving experience more enjoyable. We’ve not only made the engine more powerful, but we’ve improved acceleration, removed the speed limiter, enabled left-foot braking or brake boosting, properly rescaled the boost gauge, increased the stationary rev limiter, optimized thermal management and protection, designed the software to support normal bolt on modifications while not requiring any for the baseline configuration, and eliminated the need for a TCU upgrade to deliver maximum torque while still accurately reporting torque to the ECU.

APR STAGE 1

The APR Stage I ECU Upgrade is the first step towards making more power! This simple upgrade requires no engine hardware modifications, and produces 488-550 HP with 537-606 FT-LBS of torque depending on fuel grade. Gains as high as 75-129 HP and 89-168 FT-LBS of torque are available throughout the power band, depending on fuel grade and factory output, making the vehicle exceptionally quicker in all scenarios.

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

APR Calibration Report

STAGE	HP	TQ	MAX GAIN	MAX GAIN
Stock As Reported by Audi	444 HP	443 FT-LBS
Stock As Measured by APR	458 HP	469 FT-LBS
APR PLUS
APR Plus (91 AKI)	488 HP	537 FT-LBS	+75 HP	+98 FT-LBS
STAGE 1
91 AKI / 95 RON	488 HP	537 FT-LBS	+75 HP	+98 FT-LBS
93 AKI / 98 RON	498 HP	556 FT-LBS	+90 HP	+118 FT-LBS
100 AKI / 104 RON	524 HP	581 FT-LBS	+115 HP	+143 FT-LBS
104 AKI / 108 RON	532 HP	606 FT-LBS	+129 HP	+168 FT-LBS
E60-E85	550 HP	569 FT-LBS	+104 HP	+123 FT-LBS
STAGE 1+ W/ HPFP
E60-E85	561 HP	608 FT-LBS	+138 HP	+169 FT-LBS