Factory programming is holding your Audi back. iE tuning safely reprograms the engine computer to unleash savage acceleration, sharper response, and a completely new personality... all backed by AutoProtect. Your A4, A5, or Q5 45 TFSI drives sophisticated when cruising and brutal when you floor it.
323 HP DONE RIGHT
Big power means nothing if the car doesn't drive right. iE Stage 1 for your B9.5 2.0T delivers up to 323 HP & 391 ft-lbs with smooth, predictable power. No spikes, twitchy hesitation, or clunky surprises found with inferior tunes. Acceleration pulls hard, throttle response is precise, and everyday drivability stays refined.
FAST, NOT RECKLESS
This isn't a rushed one-off dyno file or a conservative one-size-fits-all tune. iE calibrations are developed over months and validated across real cars, climates, and driving conditions worldwide. AutoProtect continuously monitors critical engine conditions and instantly reduces power when needed. Enjoy massive power with protection built in.
FULL POWER, NO EXCUSES
2021+ transmission computers are security locked, forcing conventional tuners to work around factory torque limits by lowering power. iE developed custom engine-side code that properly communicates with the factory transmission to safely support increased clutch pressure and torque capacity. This allows us to deliver full advertised power without low-torque files. No shortcuts... zero compromises.
STOCK TO SAVAGE
1
STAGE 1
Add up to +53 HP with no required hardware upgrades, making Stage 1 the ultimate power-for-your-dollar upgrade. Keep it completely stock or pair it with an iE Air Intake System for improved airflow and aggressive turbo sound.
INCLUDED WITH CORE SUITE
Installation
Plug POWERlink Tuner into your OBD-II port, pair it with the app, and flash your tune directly from your phone in minutes.
Compatible only with previous-generation 45 TFSI models rated at 261 HP (B9.5/FY). Does not fit the redesigned 2025+ 268 HP PPC-generation Q5. If your 2025 Q5 is rated at 268 HP, this tune is not compatible.
40 TFSI / FWD Models:
This tune is designed for 45 TFSI quattro AWD models only. 40 TFSI and front-wheel-drive configurations are not compatible.
Frequently Asked Questions
How do I install the Audi B9.5 45 TFSI Tune?+
The Audi B9.5 A4, A5, and Q5 45 TFSI Stage 1 tune installs at home using the iE POWERlink V4 mobile flashing device. Connect POWERlink to the OBD-II port, pair it with your iPhone or Android device, and flash the ECU directly through the POWERlink app. No laptop, ECU removal, or dealer visit required.
Do I need a transmission tune for B9.5 2.0T 45 TFSI Stage 1?+
No. Supported B9.5 45 TFSI models use a locked transmission computer, so a traditional TCU tune is not currently required or available. iE's custom engine-side torque management allows the engine and transmission to work together and safely deliver the full advertised output without a TCU flash.
Is tuning an Audi B9.5 safe for daily driving?+
Yes. iE's engine tunes for the EA888 evo4 Longitudinal 2.0T 45 TFSI are engineered specifically for smooth, predictable daily driving. AutoProtect continuously monitors critical engine conditions and actively reduces power when operating conditions move outside calibrated limits, providing added protection alongside the increased performance.
Will tuning hurt my fuel economy?+
iE calibrations prioritize performance and drivability, and fuel economy will depend heavily on how you drive. During normal cruising, mileage can remain close to stock or even improve. When driving aggressively the added power will naturally consume more fuel.
What is mobile ECU flashing for my Audi B9.5?+
iE POWERlink Mobile uses an OBD-II flashing device that communicates with your phone via Bluetooth through the POWERlink app. No laptop, emailed tune files, remote desktop sessions, or dealer visits. Flash, monitor, diagnose, and datalog your Audi directly from your phone with a guided experience that's simple for anyone to use. Just tap and swipe.
Why choose iE POWERlink Suite over other B9.5 2.0T tuning options?+
iE POWERlink is the first and only tuning experience for your Audi B9.5 that is entirely in your hands. Plug in POWERlink, pair the app, flash your car, and you're off in minutes. No laptop, remote tuning session, emailed files, or waiting days for a custom tuner or shipping your ECU. With iE, you get professional-grade calibrations, AutoProtect safety strategies, live gauges, diagnostics, datalogging, and mobile flashing all built into one connected platform.
