2015-2021 Audi A3 8V-8V.5 2.0t Stage 3
BDT Stage 3 ECU Tune
2015–2021 Audi A3 (8V • 2.0T MQB • EA888 Gen 3)
The Audi A3 2.0T shares the same MQB as other EA888 Gen 3 platforms — which means one thing: there’s a lot of untapped potential waiting behind the factory calibration. BDT Stage 3 is built for turbo-upgraded A3s that want real power with real control — no fluff, no mystery, just proven calibration.
Unlock the Full Potential of Your Audi A3 2.0T (8V)
Exclusively Tuned by Boost Dynamic Tuning — Built by Enthusiasts, for Enthusiasts
If you own an Audi A3 2.0T, you’re sitting on serious untapped potential — and we know exactly how to extract every ounce of it. At Boost Dynamic Tuning, we don’t believe in generic solutions. We craft in-house calibrations designed to bring out the true character of your A3 — with zero fluff and all the performance.
With 11+ years of hands-on tuning experience, real-world testing, and dyno-proven results, our Stage 3 ECU Tune transforms your daily into a certified backroad weapon. No gimmicks, no mystery additives — just pure, tested performance.
Why Choose BDT?
- Audi/VAG-Specific Tuning Expertise: Purpose-built for the A3 2.0T EA888 Gen 3 using OEM-level tools and real-world refinement.
- Authenticity Over Hype: Every map written in-house — no resellers, no copy/paste calibrations.
- Remote Flashing: Flash your A3 via OBDII at home. No need to ship your ECU or visit a shop.
- Dyno-Tested & Track-Approved: Backed by data and proven under pressure.
BDT Stage 3 ECU Tune — Audi A3 Highlights
- Map Switching: 5 selectable maps changing power + crackle behavior
- RAL (Rolling Anti-Lag): build boost while moving (track/off-road use)
- Crackles / Overrun: Low • Medium • Flames in Dynamic/Sport Mode
- Turbo Support: IS38, GT22 Garrett, IS38 Hybrid, TPC38
- Fueling Support: MPI 980cc (CTS)
- Boost Delivery: optimized for smooth, responsive power
- Throttle Response: sharper, cleaner engagement
- Rev Limiter Raised: Neutral/Park
- Torque & Load Limiters Lifted
- Speed Limiter Removed
- Auto Start/Stop Defaults OFF (still functional)
- Boost Gauge Calibrated for higher readings
- LPFP/HPFP Pressure Recalibration
- OBDII Flashing: quick install (remote supported)
Note: Stage 3 is built around turbo upgrade + supporting hardware. Configure your build correctly and it will reward you.
Sound + Control
Stage 3 isn’t just about peak numbers — it’s about control: boost behavior, torque delivery, and safety strategies that keep the car consistent pull after pull.
Crackle Pops — The Overrun You’ve Been Waiting For
Add serious auditory character to your A3 with controlled overrun/crackles — perfect for enthusiasts who want that aggressive sound on decel or revs in Neutral.
- Controlled & safe implementation
- Active only in Dynamic/Sport Mode
- Sharper pops with freer-flowing exhaust setups
- Automatic safety reduction if exhaust temps climb too high
⚙️ Boost Control Recalibrated
The factory A3 2.0T boost curve can feel conservative and inconsistent once you’re on a turbo upgrade. BDT rewrites the boost logic to deliver:
- Smoother, more linear boost ramp
- Instant throttle engagement
- Consistent power delivery through every gear
This isn’t just tuning — it’s precision-built calibration that transforms the way your A3 drives.
Built for the Streets. Proven on the Dyno.
Whether you’re hunting apexes or showing out at a local meet, BDT’s Stage 3 ECU Tune gives your Audi A3 the balance of refined daily comfort and raw performance when you get into it.
Don’t just drive your A3 — dominate in it.
Live Content
STAGE 3 LIVE DYNO
MULTI MAP + RAL LIVE
MAP SWITCHING DEMO
Power Gains
Stage 3 output depends heavily on turbo choice, fueling, octane content, hardware quality, and calibration goals. The table below reflects your provided reference figures.
| Stage | Horsepower | Torque |
|---|---|---|
| Stock Audi/VW Advertised Numbers | 210 HP | 258 FT-LBS |
| Stock BDT Dyno Numbers | 209 HP | 260 FT-LBS |
| Stage 3 93 Octane | 536 HP | 450 FT-LBS |
Results vary by dyno type, fuel quality, altitude, and supporting hardware.
Tune Modification Requirements
Stage 3 is a turbo-upgrade package. If the supporting parts aren’t there, the tune can’t do its job safely or consistently.
| Part / Upgrade | Required | Recommended |
|---|---|---|
| Turbo Upgrade | X | — |
| High-Flow Exhaust | X | — |
| TCU Tune | X | — |
| Intercooler | X | — |
| Air Intake | X | — |
| Turbo Inlet Pipe | — | X |
| HPFP Upgrade | X | — |
| Catback Exhaust | — | Suggested |
| LPFP | X | — |
| MPI 980cc | X |
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 Environmental Protection Agency (EPA) or the California Air Resources Board (CARB), and is therefore not legal for sale or use in California or any state that follows CARB standards.
Assumption of Risk and Waiver of Liability
By purchasing and/or installing this product, you agree to:
- Assume all risk and responsibility for compliance with applicable local, state, and federal laws and regulations.
- 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.
- 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 in a manner inconsistent with this disclaimer
- Misrepresentation of vehicle use
- 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 the legality of this product 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.
** PLEASE NOTE, IF YOU SCHEDULE AN APPOINTMENT WITH US TO FLASH YOUR TUNE, AND YOU ARE LATE WITH NO CONTACT, THERE WILL BE A $50 LATE FEE APPLIED. IF YOU NEED TO RESCHEDULE YOUR TUNE, YOU MUST CONTACT US AT LEAST AN HOUR BEFORE YOUR APPOINTMENT, OR THERE WILL BE A $50 FEE APPLIED. **
DOWNPIPE 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 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.