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.

FEATURES

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.

739 HP DONE RIGHT

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.

NEVER LAG BEHIND

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.

ADJUSTABLE THROTTLE RESPONSE

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
1

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
2

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
3

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
4

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

Installation

Use the POWERlink Tuner and mobile app to retune your engine and unleash its full power.

DYNO CHARTS

TUNE SUITES

Each Tune Suite builds on the last by unlocking new power potential, advanced functions, fuel options, and hardware support.

SUITE FEATURES
Core Get Tuned
Pro Install Parts
APEX DOMINATE
POWERlink MOBILE
AUTOPROTECT
7000RPM LIMIT
FREE REVVING ENABLED
SPEED LIMITER DISABLED
BRAKE BOOST ENABLED
START/STOP MEMORY ENABLED
MMI TRUEBOOST
FREE LIFETIME SUPPORT
STAGE 1 MAPS
91 & 93 OCTANE
ADJUSTABLE HARDWARE SUPPORT
STAGE 2 MAPS
—
ADJUSTABLE EXHAUST CRACKLES
—
TRUEFLEX ETHANOL MAPS
—
VALET MODE
—
KICK DOWN DISABLE
—
FAN CONTROL
—
ADJUSTABLE ANTI-LAG LAUNCH CONTROL
—
—
ADJUSTABLE ROLLING ANTI-LAG
—
—
BOOST BY GEAR
—
—
ADJUSTABLE THROTTLE
—
—

COMPATIBILITY

YEAR MAKE MODEL ENGINE DRIVE
2017-2024 Audi S4 3.0T Quattro
2018-2024 Audi S5 3.0T Quattro
2018-2024 Audi SQ5 3.0T Quattro
img FITMENT NOTES

Important Notice: Some 2021-2024 B9.5 transmissions may be equipped with an advanced security lock. Before purchasing, please verify TCU compatibility by following our B9.5 TCU Unlock Guide.

Frequently Asked Questions

How do I install the iE B9 S4 tune?

Plug the POWERlink into your OBD2 port, open the app on your Apple or Android phone, and follow the steps. The flash takes minutes.

How much power does the iE B9 S4 Tune add?

Stock, our dyno shows 346 HP. Stage 1 makes 427 HP on 91 octane, 446 HP on 93, and 505 HP on E85. Stage 3+ makes up to 739 HP with a hybrid turbo. Dyno numbers are for reference against stock only. Your results will vary with fuel quality, local conditions, dyno brand, and correction factors.

Does Stage 2 make more power than Stage 1?

No. The factory downpipe on the B9 3.0T does not restrict the stock turbo, so power is the same. Stage 2 adds the calibration needed to run an aftermarket downpipe, plus a more aggressive exhaust overrun.

Do I need a transmission tune?

No, we include a Stage 1 TCU file that raises the transmission torque limits is included at no cost. The full iE Transmission Tune is optional and highly recommended for the most performance.

What do I need for Stage 3?

A TTE810 or Pure750 hybrid turbo, an upgraded intake, turbo inlet with hybrid adapter, intercooler, and the matching transmission tune. Stage 3+ adds an HPFP upgrade, 4 bar MAP sensors, and upgraded injectors. See the Stage 3 guide for the full list.

Can I run E85 with iE B9 S4 tuning?

Yes. Ethanol options are available on all stages. TrueFlex adapts automatically to any blend and requires TrueFlex hardware. On hybrid turbo cars, TrueFlex requires Stage 3+. More on TrueFlex.

Is iE B9 S4 tuning it safe for a daily driver?

Yes. iE AutoProtect is included on every stage. If it detects a problem it lowers boost and power to protect the engine, then restores power when conditions return to normal. More on AutoProtect.

What does it cost to upgrade stages later?

Only the price difference between the two stages, with no extra fees. Install the matching hardware, then buy the upgrade in the POWERlink app.

Are tune updates free?

Yes. Your purchase includes free updates to tune revisions, new octanes, standard features, and software updates. If Audi issues an ECU update, that is included at no charge too.

Can I use my POWERlink on another car?

Yes, on up to 5 different VINs. Tunes are sold separately for each car.

Can I move the tune to a different car?

No. Once applied, the tune is permanently registered to that vehicle. It can transfer to a new owner along with the car.

My car is a 2021 or newer. Can the transmission be tuned?

Possibly. 2021-2024 B9.5 cars have limited support because some transmissions have security locks that require a special unlock process. Follow the Audi B9.5 TCU Unlock Guide in your POWERlink app before buying a transmission tune for 2022+ models.

FROM THE SMALLEST DESIGN DETAILS TO CUSTOMER CARE, WE OBSESS OVER EVERY PART OF YOUR EXPERIENCE.

YOUR NEXT MOD

average rating 4.9 out of 5
Based on 172 reviews
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    1 Review
99% of reviewers would recommend this product to a friend
Fitment
Rated 5 out of 5
Quality
Rated 4 out of 5
Value
Rated 4 out of 5
Ease of Use
Rated 4 out of 5
Performance
Rated 4 out of 5
172 Reviews
Reviewed by Steven
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

No complaints

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Reviewed by Jose
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Stage 1 tune for my 2024 sq5 was just what i needed after tuning it quicker respose and more power you can feel it was good choice tunning with IE

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Reviewed by Caden L.
Verified Reviewer
I recommend this product
Rated 5 out of 5
Review posted

I love it

i have a b9.5 s5 that i just flashed stage 2 with catless and it is the best thing ive done. i love the way switching from dynamic to individual suppressed pops and bangs so if i want them i just click a button with no re flashing. hoping to do hpfp soon with e85. but as of right now Im 17 so not much cash flow :/

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Fitment
Rated 5 out of 5
Quality
Rated 5 out of 5
Value
Rated 5 out of 5
Ease of Use
Rated 5 out of 5
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Reviewed by cs x.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great!

Strong power and easy installation—satisfied with everything.

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Fitment
Rated 5 out of 5
Quality
Rated 5 out of 5
Value
Rated 5 out of 5
Ease of Use
Rated 5 out of 5
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Rated 5 out of 5
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Reviewed by eder
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Good product

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Not currently legal for road use in California

Because this part doesn't currently comply with California emissions laws, we can't sell or ship it to California addresses. Everywhere else? Full send.

California Prop 65 warning: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.