IE ECU Performance Engine Tune For B9 Audi S4/S5/SQ5 3.0T

Audi left real performance on the table with the B9 3.0T. iE's tune suite reprograms the engine computer for heavy-hitting acceleration and sharper response, then layers in a genuinely adjustable feature set — live exhaust and throttle control, ethanol flexibility, and anti-lag — gated by tier and now reachable straight from the car's own screen through CarPlay.

NO LIMITS & NO CHAINS

Audi left performance on the table. iE tuning suite sets it free by safely reprogramming your engine computer to unleash heavy-hitting acceleration, sharper response, and a completely new personality... all backed by AutoProtect.

739 HP DONE RIGHT

iE B9 3.0T tuning delivers gains of up to 505 HP on stock turbo, and up to 739 HP with Stage 3 Turbo. Unlike inferior tunes, power builds cleanly and consistently without spikes, hesitation, or clunky behavior. Acceleration pulls hard, throttle response is exact, and driving behavior is perfected for everyday use. Sophisticated when cruising. Brutal when you floor it.

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.

CUSTOMIZE YOUR SOUND

Turn on Exhaust Crackles to give your Audi 3.0T attitude with dramatic pops and burbles on decel and shifts. Make instant changes from the app or CarPlay to turn it up, tone it down, or switch it off in real time. Kill the drone or free the beast with anytime exhaust flap control The sound you want, exactly when you want it.

GO BEYOND THE APP

Take LIVE tuning beyond the POWERlink app with CarPlay, Widgets, and Siri. Access supported adjustable features faster, with convenient controls built around how you drive.

NEVER LAG BEHIND

iE Anti-Lag builds boost before you move, delivering hard-hitting AWD launches that grip and go. Rolling Anti-Lag (RAL) delivers the same advantage at speed for immediate power from a roll. Make instant launch RPM adjustments from the app, your cruise control stalk, or CarPlay and adapt to any surface.

ADJUSTABLE THROTTLE RESPONSE

iE tunes come standard with predictable and proportional throttle response. If you want more control, take command with 15 customizable settings ranging from calm and linear to sharp and immediate. Changes apply instantly so you can switch from economy to aggressive at any time. One tune, multiple personalities. No dangling hardware needed.

TRUEFLEX: E85 MADE EASY

Ethanol is like rocket fuel for your S4, S5, or SQ5, but using it shouldn’t feel like a science project. iE TrueFlex™ adds real flex-fuel intelligence, reading ethanol content and instantly optimizing boost, timing, and fuel delivery to safely deliver maximum performance for the exact fuel in your tank. No measurements. No math. No reflashing. Fill with 91/93 pump gas, full E85, or any blend in between. Just fill and drive.

BUILD GUIDE

Your path from stock to savage

STAGE 1

Experience up to 446 hp with nothing more than a Stage 1 ECU Tune on 91 or 93 octane, and even more with optional TrueFlex ethanol upgrades. Pair with an intake for improved airflow and aggressive turbo sound.

INCLUDED WITH CORE, PRO, & APEX

STAGE 2

To safely maximize the stock turbo, you’ll need a downpipe, intake, and intercooler. Increased airflow and cooling keep power consistent while acceleration pulls harder across the powerband. Pair with a catback exhaust to fully enjoy adjustable crackles.

INCLUDED WITH PRO & APEX

STAGE 3

Build to win. Stepping up to the bolt-in TTE810 or Pure750 larger turbos requires air intake, intercooler, downpipe, and turbo inlet pipe upgrades along with the iE Stage 3 Map Pack. You’ll lose nothing and be rewarded with up to a monster 613HP!

REQUIRES APEX

STAGE 3 PLUS

If losing isn't an option, max out your Stage 3 build with our 4 bar map sensors, HPFP upgrade, and larger 4.0TT RS injectors (Audi PN: 06M906036AD). For the most power, you'll need E70 ethanol and and iE TrueFlex Kit. The result is up to 739 HP with unbelievable top-end power and relentless AWD acceleration. This is your 3.0T in supercar territory.

REQUIRES APEX