BDT Stage 2 ECU Tune — 2015–2021 Audi S3 (8V • EA888 Gen 3 • IS38)

Unlock the true potential of your 8V S3. Boost Dynamic Tuning’s Stage 2 calibration delivers harder mid-range torque, cleaner power to redline, and rock-solid drivability — with transparent, live before/after dyno runs.

Why Boost Dynamic Tuning?

We don’t sell hype — we publish proof. BDT showcases live dyno demonstrations and tunes built on real data. No additives. No inflated claims. Just calibrated power, consistency, and integrity.

Stage 2 Features — S3 (8V)

• Power Gains (Dyno): ~360 WHP / 325 WTQ (typical 93 octane, supporting mods)
• 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
• Speed Limiter Removed • Neutral/Park Rev Limit Raised (with BDT TCU tune)
• 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

Dyno-Verified Power Gains

ECU TUNE MODIFICATION REQUIREMENTS

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

Crackle Pops (Overrun)

Selectable Low / Medium / Intense levels with RPM-dependent windows and per-map enable/disable. Subtle on stock exhaust; aggressive with high-flow systems. Flames possible with free-flowing setups.

Suggested Multi-Map Layout (Adjustable on Request)

• 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 — sane boost below 4k, RAL ON, 2-Step ON, Pops ON
• Map 4: High-Boost , RAL ON, 2-Step ON, Pops ON
• Map 5: Valet — RAL OFF, 2-Step OFF, Pops OFF

We’ll tailor maps to your use case (weather, fuel, track/street). Safety limits remain in place.

Boost Control & Driveability

Factory boost control can feel uneven on long pulls. BDT refines the curve for linear boost onset, improved response, and confident top-end power without surge.

Software Install Requirements

Windows laptop/tablet (Win 7+, 64-bit, 4GB+ RAM, 1.0GHz+), Wi-Fi & USB. Flash via OBDII. Remote or in-person support available.

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 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:

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.

Emissions Compliance Notice & Legal Disclaimer: This product is for motorsport and off-road use only. It is not C.A.R.B. approved and not legal for sale or use in California or other jurisdictions requiring emissions compliance. By purchasing, you acknowledge responsibility for compliance with all applicable laws and regulations.