Sale
2011 - 2018 AUDI A8 4.0 TFSI V8 ECU TUNE (Remote Tune)
$400.00 - $1,000.00
Sale
2011 - 2018 Audi S8 4.0 TFSI V8 ECU TUNE (Remote Tune)
$500.00
$400.00
Audi S8 4.0T — Choose Your Stage
2012–2018 Audi S8 (D4) • 4.0T TFSI Twin-Turbo V8 • Quattro AWD
Stage 1
655
HP / Stock Hardware
631 TQ
+135 HP / +150 TQ
No hardware required
TCU tune available
TCU tune available
Stage 2
670
HP / Intake + HFE
651 TQ
+150 HP / +170 TQ
Intake + High-flow exhaust req.
TCU tune available
TCU tune available
Stage 3
750
HP / Turbo Upgrade
780 TQ
+230 HP / +299 TQ
Full build required
TCU tune required
TCU tune required
BOOST DYNAMIC TUNING
BDT Stage 1 ECU Tune
2012–2018 Audi S8 (D4) • 4.0T Twin-Turbo V8
The S8 already commands respect — but the factory file leaves serious power on the table. BDT Stage 1 delivers 655 HP / 631 TQ with zero hardware changes. Sharper throttle, harder midrange, and the kind of pull that pins you to the seat.
Quattro AWD TCU Tune Available Crackle Pops Remote OBDII Flash
Fitment & Compatibility
Vehicle: 2012–2018 Audi S8 (D4)
Engine: 4.0T TFSI Twin-Turbo V8
ECU: Bosch MED17
- Quattro AWD
- 8-speed automatic
- 91–93 octane
- Remote OBDII flashing compatible
Stage 1 Highlights
- 655 HP / 631 TQ (from 520 HP / 481 TQ stock)
- Sharper throttle response
- Optimized boost, timing, and fueling
- Refined torque management
- Crackle Pops (Low / Medium / Intense)
- Auto Start/Stop defaults OFF
- Speed limiter removed
- Rev limiter raised
- Torque limiters raised
- LPFP/HPFP targets optimized
- VVT recalibrated
- OBDII port flashing
Power Gains
| Configuration | HP | TQ |
|---|---|---|
| Stock Audi Advertised | 520 HP | 481 TQ |
| Stage 1 | 655 HP | 631 TQ |
| Total Gain | +135 HP | +150 TQ |
| Stage 2 (intake + HFE req.) | 670 HP | 651 TQ |
| Stage 3 (turbo upgrade req.) | 750 HP | 780 TQ |
Mod Requirements
Stage 1 requires no hardware modifications. Stock-turbo and stock-exhaust friendly.
Upgrade Matrix
| Part / Upgrade | Required | Recommended |
|---|---|---|
| TCU Tune | — | HIGHLY REC. |
| Air Intake | — | YES |
| Intercooler | — | YES |
| Spark Plugs NGK or OEM | — | YES |
BOOST DYNAMIC TUNING
BDT Stage 2 ECU Tune
2012–2018 Audi S8 (D4) • 4.0T Twin-Turbo V8
Stage 2 pairs the factory twin-turbos with supporting hardware for 670 HP / 651 TQ. Harder hit, stronger midrange, cleaner pulls — without sacrificing daily drivability.
Intake + HFE Req. Quattro AWD TCU Tune Available Crackle Pops
Stage 2 Requirements: Cold air intake and high-flow exhaust are required.
Stage 2 Highlights
- 670 HP / 651 TQ (from 520 HP / 481 TQ stock)
- +150 HP / +170 TQ over stock
- Sharper throttle response
- Optimized boost and fueling
- Crackle Pops (Low / Medium / Intense)
- Auto Start/Stop defaults OFF
- Speed limiter removed
- Rev limiter raised
- Torque limiters raised
- OBDII port flashing
Power Gains
| Configuration | HP | TQ |
|---|---|---|
| Stock Audi Advertised | 520 HP | 481 TQ |
| Stage 1 (reference) | 655 HP | 631 TQ |
| Stage 2 | 670 HP | 651 TQ |
Mod Requirements
Upgrade Matrix
| Part / Upgrade | Required | Recommended |
|---|---|---|
| Cold Air Intake | YES | — |
| High-Flow Exhaust | YES | — |
| TCU Tune | — | HIGHLY REC. |
| Intercooler | — | YES |
| Spark Plugs | — | YES |
BOOST DYNAMIC TUNING
BDT Stage 3 ECU Tune
2012–2018 Audi S8 (D4) • 4.0T Twin-Turbo V8
Stage 3 is the full-send build. With upgraded turbos, BDT Stage 3 delivers 750 HP / 780 TQ — aggressive crackle pops, refined boost control, and power that puts supercar owners on notice.
Turbo Upgrade Req. Quattro AWD Aggressive Crackle Remote OBDII Flash
Stage 3 is a full turbo-upgrade build. Turbos, high-flow exhaust, intercooler, intake, and TCU tune all required.
Stage 3 Highlights
- 750 HP / 780 TQ
- Speed limiter removed • Rev limiter raised
- Torque limiters raised
- Aggressive crackle pops
- Refined boost control for upgraded turbos
- LPFP/HPFP recalibration
- VVT optimization
- OBDII port flashing
Power Gains
| Configuration | HP | TQ |
|---|---|---|
| Stock Audi Advertised | 520 HP | 481 TQ |
| Stage 1 (reference) | 655 HP | 631 TQ |
| Stage 2 (reference) | 670 HP | 651 TQ |
| Stage 3 | 750 HP | 780 TQ |
Mod Requirements
Upgrade Matrix
| Part / Upgrade | Required | Recommended |
|---|---|---|
| Turbo Upgrade | YES | — |
| High-Flow Exhaust | YES | — |
| Intercooler | YES | — |
| Cold Air Intake | YES | — |
| TCU Tune | YES | — |
| HPFP Upgrade | — | YES |
| Turbo Inlet Pipes | — | YES |
| Spark Plugs | — | YES |
⚠️ WINDOWS LAPTOP REQUIRED (NO APPLE / MACOS) • STABLE INTERNET • BDT-SUPPLIED TUNING INTERFACE
How Remote Tuning Works — Flash From Home
We connect via TeamViewer, walk you through reading your stock ECU, then flash the updated calibration in real time. You're on a live session with the actual tuner — the person who built your file.
What You Need
- Windows laptop — macOS not supported
- Stable internet connection (50+ Mbps)
- BDT-supplied tuning interface (included with purchase)
- Battery charger — 10–25 amp, connected entire session
- TeamViewer Quick Support (free)
Step-by-Step
- 1
Schedule your flash session after purchase.
- 2
Download TeamViewer Quick Support.
- 3
Connect battery charger.
- 4
Key on, engine off.
- 5
Plug in the interface — OBDII port to USB.
- 6
Share your TeamViewer ID. BDT handles everything.
- 7
Key off on command. Fault codes clear on their own.
- 8
Disconnect & drive.
WATCH: HOW REMOTE TUNING WORKS
After the flash: Fault codes may appear — 100% normal. They clear after a short drive cycle.
Can't make your scheduled time? Reschedule at least 1 hour in advance. Late arrivals without notice are subject to a $50 fee.
Frequently Asked Questions
Q: What's the difference between stages?
A: Stage 1 is stock-hardware friendly. Stage 2 requires an intake and high-flow exhaust. Stage 3 is a full turbo-upgrade build with supporting mods.
Q: Do I need the TCU tune?
A: Highly recommended for Stage 1 and 2. Required for Stage 3. The TCU tune raises torque limits and improves shift logic.
Q: What fuel does it support?
A: 91/93 octane pump gas.
Q: Can I flash at home?
A: Yes. 100% remote with live support from the actual calibrator. A Windows laptop is required.
Q: Can I adjust crackle levels?
A: Yes. Low, Medium, or Intense levels available on request.
Q: Can I upgrade stages later?
A: Absolutely. Pay the difference and schedule a reflash once your hardware is installed.
Recommended Maintenance
| Component | Interval |
|---|---|
| Spark Plugs — NGK or OEM | Every 15–20K miles |
| Engine Oil — 5W-40 Full Synthetic + OEM Filter | Every 5K miles |
| Transmission Service | Every 40K miles |
| Air Filter | Inspect every 15K miles |
| Fuel Injectors + Carbon Cleaning | Every 50K miles |
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.
Federal and State Emissions Compliance
- This product may modify, bypass, defeat, or render inoperative one or more emissions control devices.
- Use on emissions-regulated vehicles is strictly prohibited by federal law and may result in penalties up to $45,000 per vehicle under the Clean Air Act.
- This product is not certified by the EPA or CARB, and is not legal for sale or use in California or any CARB-adopting state.
Assumption of Risk and Waiver of Liability
- Assume all risk and responsibility for compliance with applicable laws.
- Waive all claims against Boost Dynamic Tuning, LLC and affiliates.
- Release Boost Dynamic Tuning, LLC from damages 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 inconsistent with this disclaimer.
Final Notice
This product is sold "as is", with no warranties regarding legality for public highway use. It is the sole responsibility of the end-user to determine legality. Boost Dynamic Tuning, LLC does not condone 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.
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Reviews
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Remote tune
Great product, good communication and easily tuned