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2020-2023 Passat 2.0t ECU TUNE (Remote Tune)
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2020- 2023 SQ7 4.0t EA825 ECU+TCU TUNE (REMOTE TUNE)
$650.00
$550.00
Audi SQ7 / SQ8 — Choose Your Stage
2020–2024 Audi SQ7 & SQ8 • 4.0T TFSI EA825 V8 Twin-Turbo • Quattro AWD
Stage 1
687 HP
815 FT-LBS
Stock Hardware
Stage 2
740 HP
890 FT-LBS
High-Flow Exhaust Req.
SAVE WITH THE BUNDLE
ECU + TCU Tune Bundle
Faster, firmer shifts • raised torque limits • full neutral/park rev limiter access • optimized shift behavior under boost. The ECU tune gets to do its full job with a supporting TCU calibration.
BOOST DYNAMIC TUNING
BDT Stage 1 ECU Tune
2020–2024 Audi SQ7 & SQ8 • 4.0T TFSI EA825 V8 • Quattro AWD
Slide into the cockpit, hit start, and the 4.0T V8 growls to life — this isn’t your dad’s SUV anymore. With BDT Stage 1, the SQ7/SQ8 becomes an absolute menace in luxury disguise. 687 HP / 815 TQ by safely unlocking the factory twin-turbos. Reliable daily driver, ruthless on demand.
Twin-Turbo 4.0T V8 Quattro AWD Crackle Pops Remote OBDII Flash ECU + TCU Bundle
Stage 1 Requirements: No hardware required — stock supported. A TCU tune, intake, and intercoolers are highly recommended.
Fitment & Compatibility
Confirm your exact engine and hardware before purchase.
Vehicle: 2020–2024 Audi SQ7 (4M) & SQ8 (4M)
Engine: 4.0T TFSI EA825 V8 Twin-Turbo (Mild Hybrid)
ECU: Bosch MG1
- Quattro AWD (Torsen center diff)
- ZF 8HP95 8-Speed Automatic
- 91–93 octane
- Remote OBDII flashing compatible
Stage 1 Highlights
- 687 HP / 815 TQ on 93 octane
- Speed limiter removed
- Rev limiter raised (neutral/park, TCU tune req.)
- Auto Start/Stop defaults OFF
- Torque limiters raised
- Fueling optimized by load & throttle
- Boost gauge re-scaled
- Crackle Pops (Dynamic mode)
- Refined boost control — linear onset
- Reduced turbo lag
- LPFP/HPFP targets optimized
- VVT recalibrated
- OBDII port flashing
Why Choose BDT?
- Audi 4.0T V8 Tuning Expertise: Purpose-built for the EA825 Bosch MG1 platform with OEM-level tools and real-world refinement.
- Authenticity Over Hype: Every file written in-house — no resellers, no copy/paste calibrations.
- Remote Flashing: Flash your SQ7/SQ8 via OBDII at home. No ECU shipping. No shop scheduling.
- Dyno-Tested & Street-Proven: Backed by data and validated under real load on the 4.0T V8.
Stage 1 Live Content
SQ7 / SQ8 STAGE 1 DYNO
Power Gains
Expected Stage 1 gains on 93 octane: up to 687 HP / 815 FT-LBS
| Stage | Horsepower | Torque |
|---|---|---|
| Stock Audi advertised | 500 HP | 568 FT-LBS |
| Stage 1 93 octane | 687 HP | 815 FT-LBS |
| Stage 2 (high-flow exhaust req.) | 740 HP | 890 FT-LBS |
Stage 1 Hardware Requirements
No hardware required. Stock 4.0T V8 supported right out of the box.
✅ Cross-Stage Upgrade Matrix
| Stage | TCU Tune | Intake | Intercooler | High-Flow Exhaust | Drivetrain Inserts |
|---|---|---|---|---|---|
| Stage 1 | — | — | — | — | — |
| Stage 2 | — | — | — | YES | — |
BOOST DYNAMIC TUNING
BDT Stage 2 ECU Tune
2020–2024 Audi SQ7 & SQ8 • 4.0T TFSI EA825 V8 • Quattro AWD
When Stage 1 isn’t enough, BDT Stage 2 pairs the factory twin-turbos with a high-flow exhaust for 740 HP / 890 TQ. Harder hit, stronger midrange, cleaner pulls — without sacrificing daily drivability.
High-Flow Exhaust Req. Quattro AWD Crackle Pops Remote OBDII Flash ECU + TCU Bundle
Stage 2 Requirement: A high-flow exhaust is required. TCU tune, intake, and intercoolers are strongly recommended.
Stage 2 Highlights
- 740 HP / 890 TQ on 93 octane
- Speed limiter removed
- Rev limiter raised (neutral/park, TCU tune req.)
- Auto Start/Stop defaults OFF
- Torque limiters raised
- Fueling optimized by load & throttle
- Boost gauge re-scaled
- Increased Crackle Pops (Dynamic mode)
- Refined boost control — linear onset
- Reduced turbo lag
- LPFP/HPFP targets optimized
- VVT recalibrated
- OBDII port flashing
Mod Requirements
| Part | Req. | Rec. |
|---|---|---|
| High-Flow Exhaust | YES | — |
| TCU Tune (ZF 8HP95) | — | HIGHLY REC. |
| Air Intake | — | YES |
| Intercoolers | — | YES |
| Turbo Inlet Pipes | — | YES |
| Drivetrain Insert Upgrades | — | YES |
Stage 2 Live Content
SQ7 / SQ8 DYNO
Power Gains
Expected Stage 2 gains on 93 octane: up to 740 HP / 890 FT-LBS
| Stage | Horsepower | Torque |
|---|---|---|
| Stock Audi advertised | 500 HP | 568 FT-LBS |
| Stage 1 93 octane | 687 HP | 815 FT-LBS |
| Stage 2 93 octane + high-flow exhaust | 740 HP | 890 FT-LBS |
⚠️ SOFTWARE REQUIREMENTS: Windows PC or laptop required for remote flashing. 50+ Mbps internet • 8GB+ RAM • TeamViewer installed. Mac is not supported at this time.
How Remote Tuning Works
Flash your SQ7 / SQ8 from home — no shop visit needed.
1
Schedule Your Flash — After purchase, scan the QR code or contact BDT to book your appointment.
2
Download TeamViewer — Install on your Windows laptop. BDT remotes in to run the flash software.
3
Hook Up Battery Charger — Positive first, then negative. Stable voltage is critical.
4
Turn Car to Accessory Mode — Key in ignition or press start without brake. Do not start the engine.
5
Plug In OBDII Cable — Connect to the OBDII port (driver side, under dash).
6
BDT Takes Remote Control — We handle everything. You watch the entire process live.
7
Key Off on Command — When BDT says “turn key off,” do it immediately.
8
Disconnect & Drive — Unplug OBDII, remove charger (negative first, then positive), start the car, enjoy.
Post-Flash Note: You may see a few fault codes after flashing — this is normal. They clear after a short drive cycle.
HOW REMOTE TUNING WORKS
Frequently Asked Questions
Q: What mods are required for Stage 1?
A: None. Stage 1 supports stock hardware. A TCU tune, intake, and intercoolers are highly recommended for best results.
Q: What mods are required for Stage 2?
A: A high-flow exhaust is required. TCU tune, intake, intercoolers, turbo inlet pipes, and drivetrain inserts are strongly recommended.
Q: Is Stage 1 safe on the stock 4.0T V8?
A: Yes — when maintenance is followed. Stage 1 is calibrated around safe boost targets with OEM protection logic on factory hardware.
Q: What fuel do I need?
A: 91 or 93 octane required. Running lower octane will reduce power and trigger knock protection.
Q: Do I need a TCU tune?
A: Not required, but highly recommended. The ZF 8HP95 responds extremely well to a TCU tune — faster, firmer shifts, raised torque limits, and full access to the neutral/park rev limiter. BDT offers an ECU + TCU bundle at a discounted price so your tune gets the full supporting calibration it deserves. Contact BDT for current bundle pricing.
Q: How do crackle pops work?
A: Crackle pops activate in Dynamic drive mode. Subtle on the factory exhaust, absolutely unhinged with a high-flow exhaust installed.
Q: Will this affect the mild hybrid system?
A: No. Our calibration keeps the 48V mild hybrid system fully functional. Start/stop is defaulted off by the tune.
Q: Do I need a Windows computer?
A: Yes. The flashing software requires Windows. Mac is not supported. 50+ Mbps internet and 8GB+ RAM required.
Maintenance (Read This)
IF YOU WANT YOUR CAR TO SURVIVE, THESE MUST BE DONE!
We want your SQ7/SQ8 to live a long, happy tuned life. These intervals come from years of tuning the 4.0T V8 platform. If these aren’t kept up, failures happen — and it won’t be the tune.
| Maintenance Item | Interval |
|---|---|
| SPARK PLUGS NGK OEM-spec Iridium (1 heat range colder recommended for tuned) — contact BDT for part number |
20–30K mi |
| OIL CHANGE Audi-approved 0W-30 or 5W-40 Liqui Moly • OEM FILTER ONLY |
5K mi |
| ZF 8HP95 TRANSMISSION FLUID SERVICE ZF LifeguardFluid 8 • Pan gasket & filter included |
60–80K mi |
| FRONT & REAR DIFFERENTIAL FLUID OEM or approved 75W-90 GL-5 • Torsen-friendly |
60K mi |
| MAP SENSORS OEM only • Intake / before throttle body |
80K mi |
| PCV ASSEMBLY | 80K mi |
| INJECTORS + CARBON CLEANING Do them on time to avoid misfires, lean conditions, and long-term damage. |
85K mi |
Late Policy: If you schedule 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:
- 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 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.
2020, 2021, 2022, 2023, 2024 Audi SQ7 4M and SQ8 4M 4.0T TFSI EA825 V8 Twin-Turbo Bosch MG1 Quattro AWD ZF 8HP95. Stage 1 and Stage 2 ECU tuning includes refined boost control, reduced turbo lag, raised torque limiters, crackle pops in Dynamic mode, speed limiter removal, and OEM-safe protection logic. This Audi SQ7 SQ8 ECU tune is flashable via OBDII and calibrated in-house by Boost Dynamic Tuning. sq7 ecu tune, sq8 ecu tune, sq7 stage 1 tune, sq7 stage 2 tune, sq8 stage 1 tune, sq8 stage 2 tune, audi sq7 tune, audi sq8 tune, audi sq7 stage 1, audi sq7 stage 2, audi sq8 stage 1, audi sq8 stage 2, sq7 4.0t tune, sq8 4.0t tune, sq7 v8 tune, sq8 v8 tune, audi 4.0t v8 tune, ea825 tune, ea825 v8 tune, 2020 sq7 tune, 2021 sq7 tune, 2022 sq7 tune, 2023 sq7 tune, 2024 sq7 tune, 2020 sq8 tune, 2021 sq8 tune, 2022 sq8 tune, 2023 sq8 tune, 2024 sq8 tune, sq7 ecu flash, sq8 ecu flash, sq7 obdii flash, sq8 obdii flash, sq7 remote tune, sq8 remote tune, sq7 crackle pops, sq8 crackle pops, sq7 crackle tune, sq8 crackle tune, sq7 overrun tune, sq8 overrun tune, sq7 dynamic mode crackles, sq8 dynamic mode crackles, sq7 performance tune, sq8 performance tune, sq7 high-flow exhaust tune, sq8 high-flow exhaust tune, sq7 tcu tune, sq8 tcu tune, sq7 zf 8hp tune, sq8 zf 8hp tune, sq7 zf 8hp95 tune, sq8 zf 8hp95 tune, sq7 ecu remap, sq8 ecu remap, sq7 bosch mg1 tune, sq8 bosch mg1 tune, sq7 dyno tune, sq8 dyno tune, sq7 93 octane tune, sq8 93 octane tune, sq7 quattro tune, sq8 quattro tune, sq7 speed limiter removed, sq8 speed limiter removed, sq7 rev limiter removed, sq8 rev limiter removed, sq7 torque limiter raised, sq8 torque limiter raised, sq7 turbo lag reduced, sq8 turbo lag reduced, sq7 intercooler tune, sq8 intercooler tune, sq7 intake tune, sq8 intake tune, sq7 drivetrain inserts, sq8 drivetrain inserts, sq7 4m tune, sq8 4m tune, audi 4m sq7 tune, audi 4m sq8 tune, sq7 mild hybrid tune, sq8 mild hybrid tune, sq7 48v tune, sq8 48v tune, sq7 v8 twin turbo tune, sq8 v8 twin turbo tune, sq7 flash at home, sq8 flash at home, sq7 remote flashing, sq8 remote flashing, boost dynamic tuning sq7, boost dynamic tuning sq8, bdt sq7 tune, bdt sq8 tune, bdt stage 1 sq7, bdt stage 1 sq8, bdt stage 2 sq7, bdt stage 2 sq8, best sq7 tune, best sq8 tune, audi sq7 performance, audi sq8 performance, sq7 horsepower tune, sq8 horsepower tune, sq7 torque tune, sq8 torque tune, sq7 vvt tune, sq8 vvt tune, sq7 boost gauge, sq8 boost gauge, sq7 lpfp hpfp tune, sq8 lpfp hpfp tune, sq7 fueling tune, sq8 fueling tune, sq7 ecu tcu bundle, sq8 ecu tcu bundle, audi sq7 ecu tcu bundle, audi sq8 ecu tcu bundle, sq7 zf 8hp95 bundle, sq8 zf 8hp95 bundle, bdt ecu tcu bundle, sq7 transmission tune, sq8 transmission tune, sq7 ecu plus tcu, sq8 ecu plus tcu
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Reviews
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Sq7 stage 1 ecu tcu
After getting the Stage 1 tune, my SQ7 went from feeling strong to feeling exactly how it should’ve come from the factory. The improvement is immediately noticeable. Throttle response is quicker, the power delivery is smooth and consistent, and it pulls hard without feeling forced. The shifts are clean, predictable, and way better than stock. Everything just works together in a way that makes the SQ7 feel more enjoyable to drive, whether you’re cruising or getting a little spirited with it. Driving characteristics overall are much improved. It feels faster, lighter on its feet, and more responsive. It’s the type of upgrade that makes you look forward to driving the car again. The process itself was flawless. Communication was on point, everything was explained clearly, and the transaction was smooth from start to finish. In short: Great tune, great experience, and a noticeable upgrade in all the right ways.