2021 - 2025 Audi Q5 45 TFSI B9.5 2.0t ECU TUNE (Remote Tune)

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Boost Dynamic Tuning

Audi Q5 45 TFSI B9.5 ECU Tune

Real Numbers. Real Pulls.

Tap a stage — power, fuel, and required mods at a glance. Wheel numbers straight off our DynoLog sheets — the chart draws every stage against stock, and every stage's dyno session is on video below.

Horsepower282.9WHP325 HP crank est.
Torque299.4WTQ344 TQ crank est.
Fuel: 91/93 octaneRequired mods: none — stock hardwareData: peaks dyno-verified
Horsepower302.3WHP345 HP crank est.
Torque300.1WTQstock hardware
Fuel: 93 octaneRequired mods: none — stock hardwareData: peaks dyno-verified
Horsepower330WHP380 HP crank est.
Torque367WTQethanol torque
Fuel: E85Required mods: none — stock hardwareData: peaks dyno-verified
Horsepower318.9WHP368 HP crank est.
Torque342.4WTQwith high-flow exhaust
Fuel: 93 octaneRequired mods: high-flow exhaustData: peaks dyno-verified
Horsepower348.5WHP402 HP crank est.
Torque386.6WTQfull send
Fuel: Full E85Required mods: high-flow exhaust + intercoolerData: peaks dyno-verified
100200300400500200030004000500060007000
Stock baseline — 263.5 WHP / 269.1 WTQSTAGE 1 OUTPUT — 282.9 WHP / 299.4 WTQSTAGE 1+ OUTPUT — 302.3 WHP / 300.1 WTQSTAGE 1+ E85 OUTPUT — 330 WHP / 367 WTQSTAGE 2 OUTPUT — 318.9 WHP / 342.4 WTQSTAGE 2+ E85 OUTPUT — 348.5 WHP / 386.6 WTQ

If your tuner doesn't show before & after dyno videos, you're being lied to.

A dynamometer is a before-and-after measuring tool — not an absolute output number. What can't be faked is the delta: same platform, same dyno, stock vs tuned — on camera, in the videos below.

 

How It Works — Remote Tune

No shop visit. We flash your Q5 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

Optimized Boost & TorqueDelivery dialed across every stage
IAT Safety AlertDash warning when you are pushing heat too hard
Crackles — Dynamic ModeLow / Medium / Intense-Flames, all stages
Speed Limiter RemovedFactory Vmax restriction deleted
Torque + Load Limiters RaisedFactory caps lifted for full delivery
Raised Rev Limiter (N/P)Neutral / Park rev limit raised
True E85 StagesStage 1+ E85 and Stage 2+ E85 calibrations
Remote OBDII FlashFlashed from home over a live BDT session

Watch The Proof

Every stage on the rollers, the JB4 comparison, and real customers. Sound on.

Dyno Session — Stage 1

Dyno Session — Stage 1+

Dyno Session — Stage 2

Dyno Session — Stage 2+ E85

BDT Stage 2 vs JB4 Stage 2

Crackle Pops Demo

Customer Reviews — Live Call

Customer Supplied Video

 

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 / UpgradeS1S1+S1+ E85S2S2+ E85
High-Flow Exhaust CTS B9.5 options: test pipehigh-flow catREQREQ
Intercooler Highly recommended from Stage 1+ E85 upRECRECRECRECREQ
Air IntakeRECRECRECRECREC
Drivetrain InsertsRECRECREC

TCU tune is not available on this platform. Final output varies with fuel quality, altitude, temperature, and vehicle health — BDT publishes live before/after runs for transparency.

Maintenance

Maintenance ItemInterval
SPARK PLUGS
NGK R7438-8 Racing Plugs
15-20K mi
OIL CHANGE
5W-40 Liqui Moly • OEM FILTER ONLY
5K mi
DSG / MANUAL TRANS FLUSH & FILTER
OEM only
30K mi
MAP SENSORS
OEM only • intake / before throttle body
80K mi
PCV ASSEMBLY80K mi
INJECTORS + CARBON CLEANING
Do them on time to avoid misfires, lean conditions, and long-term damage
85K 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.