2017 - 2022 Audi B9 S4 S5 ECU TUNE (REMOTE)

2017 - 2022 Audi B9 S4 S5 ECU TUNE (REMOTE)

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Description
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 S4 / S5 B9 3.0T ECU + TCU Tune

Real Numbers. Real Pulls.

Tap a stage — power, fuel, and required mods at a glance. Every stage includes the in-house ECU calibration plus the optimized AL552 8-speed TCU tune.

Horsepower446HPECU + TCU included
Torque570TQstock hardware
Fuel: 91/93 octaneRequired mods: none — stock hardwareData: peaks dyno-verified
Horsepower480HPECU + TCU included
Torque580TQwith high-flow exhaust
Fuel: 93 octaneRequired mods: high-flow exhaustData: peaks dyno-verified
 

How It Works — Flash It Yourself

No appointments. No screen-share. The free BDT Flasher app puts the tune in your driveway — plug in, pick your map, hit Flash. Your S4 / S5 sounds different in 20 minutes. Your ECU and transmission both flash from the same app.

1

Download — grab the free BDT Flasher. One-click Windows installer, 30 seconds.

2

Plug In — Tactrix Openport 2.0 OBDII cable from your laptop to the port under the dash.

3

Sign In — your purchased tunes show up automatically. Pick your map.

4

Send It — hit Flash. 15–20 minutes, then pull out of the driveway.

Existing BDT customer? Text (843) 891-6687 and we'll load your tune into the flasher.

Nine Maps. One Cruise Stalk.

BDT Multi-Map Switching carries nine overrun-crackle calibrations in the car with you — Map 1 a restrained low-rpm tick, Map 9 full pop-and-bang. No laptop, no reflash: you change character live from the cruise lever, and the tachometer’s redline doubles as your on-screen map indicator.

1

Hold SET at the tip of the cruise lever for 2–5 seconds — the redline sweeps to the map you last ran. You’re now in map-select.

2

Release SET, then tap the stalk up or down to step through the maps.

3

Read it off the tach — the redline parks at the map number × 1,000 rpm: Map 1 at 1,000, Map 5 at 5,000.

4

Maps 7–9 sit above where the redline can travel, so the gauge won’t show them — keep tapping past six and count your clicks to reach 7, 8 or 9.

Valet-quiet on Map 1, full send on Map 9 — switched at any stoplight, no tools.

A True Custom Tune. Three Free Revisions.

This is not an off-the-shelf flash. Every BDT calibration for this platform includes three complimentary custom revisions and full data-logging support.

You log your own car through the BDT Flasher — boost, timing, load, intake temperatures, fueling and knock activity — then send us the data. We refine the calibration to your exact engine, fuel, hardware and climate and send it back to flash at home. The result is a tune dialed to your car specifically, not a generic file sprayed across every VIN. Three rounds of refinement are on us; most cars are sorted well inside that.

What's Included

✓
AL552 TCU Tune IncludedFaster shifts, raised trans torque limits — every stage
✓
Crackle PopsV6 turbo overrun — pick your level
✓
Speed Limiter RemovedFactory Vmax restriction deleted
✓
Rev Limit RaisedMore usable RPM on every pull
✓
Torque Limiters Raised580 lb-ft needs every cap gone
✓
IAT + EGT Safety LogicOEM-grade protection strategies stay active
✓
Remote OBDII FlashFlashed from home over a live BDT session

See It

The exhaust note. Sound on.

Exhaust Demo

 

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 Exhaust—REQ
Air IntakeRECREC
Intercooler UpgradeRECREC

Maintenance

Maintenance ItemInterval
ZF 8HP TRANSMISSION FLUID SERVICE
OEM ZF fluid only • pan + filter change • how-to video below		60-80K mi

Do It Yourself — ZF Transmission Service

Fluid, filter and pan, start to finish, filmed in the BDT shop on a B9.5 RS5 2.9T — the same ZF 8-speed family as this car. Sound on.

ZF Transmission Service — Fluid + Filter + Pan

Why We Push This Service

The ZF 8-speed is the strongest part of the drivetrain when its fluid is fresh, and the first thing to complain when it is not. A tune adds torque; old fluid and a tired filter add heat and slip. OEM ZF fluid only, pan and filter together, at the interval above. The video walks the whole job so you know exactly what a shop is charging you for — or how to do it yourself.

 

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.

EMISSIONS COMPLIANCE NOTICE & LEGAL DISCLAIMER

FOR COMPETITION USE ONLY — NOT FOR STREET USE

This product is sold and intended solely for vehicles used in closed-course racing, off-road competition, or organized motorsport events. It is not legal for use on any pollution-controlled vehicle operated on public roads or highways, as defined under the Clean Air Act (42 U.S.C. § 7522) and applicable state emissions laws.

By purchasing, installing, or using this product, you explicitly acknowledge and agree to the following terms:

Federal and State Emissions Compliance

  • This product may modify, bypass, defeat, or render inoperative one or more emissions control devices, including but not limited to: catalytic converters, oxygen sensors, EGR systems, or OBD monitoring systems.
  • The installation or use of this product on any vehicle subject to emissions regulations is strictly prohibited by federal law and may result in civil or criminal penalties, including fines up to $45,000 per vehicle under the Clean Air Act.
  • This product is not certified by the EPA or CARB, and is therefore not legal for sale or use in California or any CARB-adopting state.

Assumption of Risk and Waiver of Liability

By purchasing and/or installing this product, you agree to:

  1. Assume all risk and responsibility for compliance with applicable local, state, and federal laws and regulations.
  2. Waive all claims, liabilities, and legal actions against Boost Dynamic Tuning, LLC, its officers, directors, employees, and affiliates arising from the purchase, installation, or use of this product in violation of any applicable law.
  3. Release Boost Dynamic Tuning, LLC from any and all damages, injuries, or penalties resulting from improper or unlawful use.

Indemnification Clause

You further agree to indemnify, defend, and hold harmless Boost Dynamic Tuning, LLC from any fines, penalties, damages, losses, or legal fees resulting from use of this product inconsistent with this disclaimer, misrepresentation of vehicle use, or violation of any emissions laws or regulations.

Final Notice

This product is sold "as is" and "with all faults", with no warranties, expressed or implied, regarding legality for public highway use or emissions compliance. It is the sole responsibility of the end-user to determine legality for the intended application. Boost Dynamic Tuning, LLC does not condone or recommend illegal street use or emissions equipment tampering.

By completing your purchase, you acknowledge that you have read, understood, and agreed to this disclaimer in full.

HIGH-FLOW EXHAUST NOTICE: BY PURCHASING A MOTORSPORT/RACING PRODUCT ("PRODUCT"), YOU REPRESENT THAT YOU UNDERSTAND AND AGREE THAT: THE PRODUCT IS NOT DESIGNED TO MEET ANY APPLICABLE EMISSIONS STANDARDS, WHETHER IN THE USA OR OTHERWISE, THE PRODUCT IS NOT DESIGNED TO BE C.A.R.B. COMPLIANT, AND THAT THE PRODUCT IS NOT FOR SALE OR USE IN CALIFORNIA, USA NOR ANY OTHER JURISDICTION WHERE THE SALE OR USE IS PROHIBITED BY LAW. BOOST DYNAMIC TUNING, LLC MAKES NO REPRESENTATIONS, WARRANTIES, OR CLAIMS THAT THIS PRODUCT COMPLIES WITH ANY APPLICABLE EMISSIONS LAWS AND EXPRESSLY DISCLAIMS ANY AND ALL SUCH REPRESENTATIONS, WARRANTIES, AND CLAIMS, WHETHER EXPRESS OR IMPLIED. BY PURCHASING THIS PRODUCT, YOU REPRESENT, WARRANT, AND AGREE THAT IT IS YOUR RESPONSIBILITY TO INFORM YOURSELF OF ANY LAWS OR REGULATIONS THAT MAY APPLY TO YOUR PURCHASE AND/OR USE OF THE PRODUCT.