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EA839 2.9TT ECU Tune | Audi B9/B9.5 2.9T RS5 | Integrated Engineering

EA839 2.9TT ECU Tune | Audi B9/B9.5 2.9T RS5 | Integrated Engineering

IESOVZ21-STG1ECU-TCU

In stock - Ships today if ordered before 2PM EST!
Regular price $1,598.00
Sale price $1,598.00 Regular price

Tune Cable (Required for Flash-at-Home)



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EA839 2.9TT ECU Tune | Audi B9/B9.5 2.9T RS5 | Integrated Engineering

$1,598.00

Overview

Unlock the full potential of your B9 Audi RS4 or RS5 with Integrated Engineering (IE) ECU Tuning. Using the IE POWERlink Bluetooth dongle and mobile app, you can flash your vehicle directly through the factory OBD-II port, switch between fuel maps, upgrade tune stages, perform diagnostics, monitor live data, and return the vehicle to stock—all from your smartphone. Designed for everything from stock vehicles to Pure800 turbo builds, IE ECU Tuning delivers substantial gains in horsepower, torque, throttle response, and drivability while incorporating advanced motorsport-inspired features and intelligent engine protection.


Details

  • Stage 1: Delivers up to 542 HP and 558 lb-ft with no hardware required. Features increased boost pressure, a 7,000 RPM neutral rev limit, brake boost, removed speed limiters, AutoProtect engine safety, and TrueFlex ethanol compatibility (requires hardware).
  • Stage 2: Designed for vehicles equipped with aftermarket downpipes, unlocking enhanced exhaust overrun/crackle in Dynamic mode without additional power gains over Stage 1. Includes Stage 2+ support for vehicles equipped with an upgraded IE High-Pressure Fuel Pump (HPFP).
  • Stage 3: Engineered specifically for the Pure800 hybrid turbocharger, delivering significantly higher horsepower and torque while maintaining OEM-like drivability when paired with the required supporting hardware.
  • TrueFlex Flex Fuel: Compatible with IE's TrueFlex Flex Fuel Kit, allowing the ECU to automatically adapt to any ethanol blend without reflashing (hardware required).
  • Anti-Lag Launch & Rolling Anti-Lag: Included on every tune stage, building boost before launch or during roll racing for dramatically improved acceleration. Launch RPM can be adjusted instantly using the cruise control stalk.
  • Brake Boost: Standard on all tune stages, allowing boost to build while braking for stronger rolling launches and faster acceleration.
  • Exhaust Overrun: Stage 2 enables a more aggressive crackle feature in Dynamic mode, including crackles while free revving in Park or Neutral.
  • AutoProtect Engine Safety: Continuously monitors engine operation and automatically reduces power if unsafe conditions are detected to help protect the engine and turbocharger.
  • Easy Tune Upgrades: Upgrade between tune stages by simply paying the price difference once the required supporting hardware is installed.
  • Mobile Flashing & Diagnostics: Flash, update, switch fuel maps, monitor live gauges, and perform diagnostics directly from your smartphone using the IE POWERlink Bluetooth dongle.
  • Supporting Hardware: Stage 1 is compatible with stock vehicles and benefits from optional intake, turbo inlet, and intercooler upgrades. Stage 2 requires aftermarket downpipes, while Stage 1+ and Stage 2+ require an upgraded IE HPFP for maximum E85 performance. A matching IE TCU Tune is included with Stage 1 and Stage 2 ECU tunes, with the Stage 2 TCU Tune available as a recommended upgrade for maximum drivetrain performance.

Fitment

Years Make Model Engine Trim
2018-2019 Audi RS5 2.9TT All
2020-2025 Audi RS5 2.9TT Coupe/Sportback (2020-2024); Sportback only (2025)