BDT Stage 1 ECU Tune

2015–2021 Audi A3 (8V • EA888 Gen 3 • IS20)

Your A3 is already a smooth, balanced daily — but the factory file keeps the IS20 on a short leash. BDT Stage 1 wakes up the EA888 Gen 3 with sharper throttle response, a stronger mid-range hit, and clean power that carries to redline — all while keeping the car reliable and easy to live with every day.

Fitment & Compatibility

Unlock the Full Potential of Your Audi A3 (8V)

Exclusively Tuned by Boost Dynamic Tuning — Built by Enthusiasts, for Enthusiasts

At Boost Dynamic Tuning, we don’t do generic “one-size” flashes. Our Stage 1 calibrations are written in-house from real logs, dyno validation, and street refinement to bring your A3 to life without compromising drivability.

With 11+ years of hands-on tuning experience and ongoing development on the EA888 platform, BDT Stage 1 delivers the power you want, the smoothness you expect, and the reliability your daily needs.

Why Choose BDT?

• Audi/VAG-Specific Expertise: Purpose-built for EA888 Gen 3 IS20 using OEM-level tools and refinement.
• Authenticity Over Hype: Every map written in-house — no resellers, no copy/paste files.
• Remote Flashing: Install via OBDII from home. No ECU shipping. No shop schedule.
• Dyno-Tested & Street-Proven: Safe, repeatable gains validated in real conditions.

BDT Stage 1 ECU Tune — Audi A3 (8V) Highlights:

• Multi-Map Switching (5 maps) — on-the-fly via cruise controls
• Rolling Anti-Lag (RAL) — build boost while moving (track/off-road)
• 2-Step (Manual only) • Boosted Launch (DSG) with BDT TCU logic
• Intake Air Temp Safeties to protect your engine
• EGT Safety Logic to protect the engine/turbo
• Speed Limiter Removed • Neutral/Park Rev Limit Raised
• Auto Start/Stop Defaults Off (feature remains functional)
• Torque Limiters Raised
• Fuel/Torque Request Optimized by load & throttle
• Stock Boost Gauge Re-scaled to display higher boost
• Overrun / Crackle Pops in Dynamic or per-map control (optional)
• Refined Boost Control — linear onset, smoother long-pull stability
• Reduced Turbo Lag
• LPFP/HPFP Targets Optimized
• VVT Optimization
• OBDII Port Flashing — quick install at home or in-shop

Crackle Pops — Controlled Overrun

Add real auditory character to your A3 with safe, controlled overrun. Selectable Low / Medium / Intense levels in Dynamic mode. Subtle on stock exhaust, aggressive with free-flowing setups.

⚙️ Boost Control Recalibrated

Factory boost can feel bumpy and conservative. BDT rewrites the logic to deliver:

• Smoother, more linear boost ramp
• Instant throttle engagement
• Consistent pull through every gear

POWER GAINS

Expected Stage 1 gains on 93 octane: up to 268 WHP / 307 WTQ (approx. 308 HP / 353 TQ at the crank).

Results vary by dyno type, fuel quality, altitude, and supporting hardware. BDT publishes live before/after runs for transparency.

ECU TUNE MODIFICATION REQUIREMENTS

Multi-Map Layout

• Map 1: Daily (low boost), RAL ON, 2-Step ON, Pops OFF
• Map 2: Daily (standard), RAL ON, 2-Step ON, Pops OFF
• Map 3: Race — NORMAL TIMING, RAL ON, 2-Step ON, Pops ON
• Map 4: RACE — HIGH BOOST, HIGH TIMING, RAL ON, 2-Step ON, Pops ON, 100 OCTANE REQUIRED
• Map 5: Valet — RAL OFF, 2-Step OFF, Pops OFF

Software Install Requirements

WINDOWS LAPTOP REQUIRED (NO APPLE)

OVER 50MBS INTERNET SPEED

400MB RAM SPEED MINIMUM

IF YOU WANT YOUR CAR TO SURVIVE, THESE MUST BE DONE!

I WANT YOUR CAR TO SURVIVE MULTIPLE YEARS TO COME WITH MY TUNE. I DON'T JUST RECOMMEND THESE FOR FUN. I HAVE TUNED COUNTLESS AUDI 8V CARS AND THIS IS WHAT I'VE EXPERIENCED THROUGH THE YEARS. IF YOU CAN'T AFFORD THE PARTS, PLEASE DON'T TUNE YOUR CAR. NOT BEING HARSH, BEING STRAIGHT FORWARD SO YOU DON'T BLAME MY TUNE THAT ARE ON COUNTLESS CARS WITHOUT ISSUES BECAUSE THEY FOLLOW MY MAINTENANCE GUIDE.

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

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 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.