2017 - 2020 Audi A4 B9 A4 A5 2.0t ECU TUNE (REMOTE)

Availability:
Usually ships in 24 hours
$750.00
(1 review)
Width:
7.00 (in)
Height:
1.00 (in)
Depth:
7.00 (in)
Current Stock:
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Software Product — No Vehicle IncludedThis listing is an ECU calibration file and remote flashing service for the vehicle listed above. Boost Dynamic Tuning does not sell, broker, or supply motor vehicles. Vehicle names, model years and photographs are used solely to identify which car this software is compatible with.
Boost Dynamic Tuning

Audi A4 / A5 B9 2.0T ECU Tune

Choose Your Stage & Get Tuned →
Stock file saved before we write · Flash back to factory free, any time · Remote OBDII flash from your driveway

Real Numbers. Real Pulls.

Tap a stage — power, fuel, and required mods at a glance. From the B9's 232 HP / 262 TQ advertised stock.

Horsepower~282WHPstock turbo
Torque~360WTQon 93 octane
Fuel: 93 octaneRequired mods: none — stock hardwareData: peaks dyno-verified
Horsepower~362HPcrank figures
Torque~442TQwith high-flow exhaust
Fuel: 93 octaneRequired mods: high-flow exhaustData: peaks dyno-verified
 

How It Works — Remote Tune

No shop visit. We flash your A4 / A5 over the internet while you watch it happen live on your screen.

1

Schedule — after purchase, book your remote flash session with BDT.

2

Set Up — Windows laptop with TeamViewer, our OBDII cable in the port, battery maintainer on the car, key in accessory.

3

We Flash It — BDT remotes into the laptop and runs the whole flash while you watch live.

4

Drive — key off on command, unplug, done. A few fault codes right after flashing are normal; they clear after a short drive cycle.

This ECU family flashes via a live BDT remote session. Self-flashing with the BDT Flasher lands when this platform is ported.

What's Included

Crackle PopsPick your level — changed on any re-flash, free
Speed Limiter RemovedFactory Vmax restriction deleted
Rev Limit RaisedMore usable RPM on every pull
Torque Limiters RaisedFactory torque caps lifted for full delivery
IAT + EGT Safety LogicOEM-grade protection strategies stay active
Refined Boost ControlSmoother ramp, stronger midrange
Remote OBDII FlashFlashed from home over a live BDT session

Hear It

The B9 on the overrun. Sound on.

Crackle Pops — B9

 

What Your Car Needs, Per Stage

If it is not listed as required, the tune runs without it.

REQ Required before flashing REC Recommended Not needed
Part / UpgradeStage 1Stage 2
High-Flow ExhaustREQ
Air IntakeRECREC
Intercooler UpgradeRECREC

Maintenance

Maintenance ItemInterval
SPARK PLUGS
NGK Racing Plugs
15-20K mi
OIL CHANGE
5W-40 Liqui Moly • OEM FILTER ONLY
5K mi
TRANSMISSION SERVICE / FLUSH
OEM fluid only
30K mi
MAP SENSORS
OEM only • intake / before throttle body
50K mi
PCV ASSEMBLY50K mi
INJECTORS + CARBON CLEANING
Direct injection builds carbon — do them on time
65K mi

Late Policy: If you schedule an in-person flash and arrive late without notice, a $50 fee applies. Reschedules must be made at least 1 hour prior.

 

Your ECU Is Safe

Your stock file is savedWe read and archive your factory file before a single byte is written. You can flash back to stock at any time, free.
Verified writes, safe abortsEvery flash is checksum-verified. If the connection drops mid-write the process aborts safely and can be resumed — it does not leave your ECU half-written.
You talk to the calibrator11+ years of in-house VAG calibration. The person who built your file is the person on the phone — not a reseller passing on someone else’s tune.
Ready? Choose Your Stage →
Stock file saved before we write · Flash back to factory free, any time · Remote OBDII flash from your driveway

Reviews

  • 5
    Stage 2 ECU, and got a TCU tune

    Posted by Mark M on Sep 8th 2025

    Very nice bang for ur buck tune! Definitely feel the difference, and runs without any problems. Launch control is addicting