Tuned Audi
Now Tuning 2021-2025 B9.5 Mild Hybrid EA888

PRECISIONCALIBRATIONSENGINEERED

ECU & TCU performance tunes for Audi and Volkswagen — developed in-house on our AWD dyno, flashed remotely from your driveway. Multi-map, E85, crackle pops — from Hilton Head Island, SC to all 50 states.

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Remote Flash

OBDII from your driveway

Multi-Map

91 / 93 / E85 / Valet

E85 Flex Fuel

True ethanol sensing

Crackle Pops

Overrun exhaust character

What We Tune
POPULAR PLATFORMS

Every calibration built in-house on real vehicles. Pick your platform.

The Shop
BUILT ON THE DYNO.
PROVEN ON THE ROAD.
Boost Dynamic Tuning AWD Dyno
Hilton Head Island, SC

IN-HOUSE AWD DYNO
DEVELOPMENT

Every calibration is developed and validated on our ProHub AWD dyno. We don't guess — we measure, refine, and verify. Your tune is built on real data from real vehicles, not recycled base maps.

When you purchase a tune from BDT, you're getting a file that was refined with professional-grade tools and tested under load.

AWD
ProHub Dyno
ECU
& TCU Tuning
DATA
Driven Results
The BDT Difference
WHY OWNERS
CHOOSE US
01

Only USA Tuner for B9.5 Hybrid EA888

IE and 034 explicitly do not support 2021+ mild hybrid vehicles. We're the only calibrator in the country with proven tunes for the B9.5 A4, A5, and Q5 45 TFSI platform.

02

Custom In-House Calibrations

Not recycled base maps. Every file is built for your exact ECU box code, fuel type, and hardware list on our AWD dyno.

03

Flash From Your Driveway

No dealer, no shop. Plug in, flash, drive. Full support via text, call, or email throughout the entire process.

04

Lifetime Calibration Updates

Upgrade your hardware? Switch to E85? Your tune files are updated at no extra cost. The calibration grows with your build.

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Vehicle Platforms
0
States Served
24HR
Avg Turnaround
4.6★
Google Rating
HILTON HEAD ISLAND, SC
Proudly Based & Operated
Remote Tuning
TUNED IN 4 STEPS

No shop visit. Flash your ECU from your driveway with a Windows laptop and our OBDII cable.

01

Purchase Your Tune

Select your vehicle and stage. We reach out within hours.

02

Read Your Stock File

Plug in the OBDII cable, read your factory ECU file, send it over.

03

We Build Your Tune

Custom calibration for your exact box code, fuel, and mod list.

04

Flash & Drive

Download, flash, and feel the difference immediately.

Customer Reviews
REAL RESULTS.
REAL OWNERS.
"Grabbed the Stage 1+ from BDT for my 2023 Audi A4 B9.5 and the car feels like a completely different machine. Woke it right up and is a pleasure to drive. I'm giddy walking to the parking lot after work because I get to daily drive over 300 whp."
Cullen W.
2023 Audi A4 B9.5 45 TFSI · Stage 1+
"Trent was able to get me a new ECU and reprogrammed it in no time. The way he makes your car snatch you a smile like if you were in a race car is priceless! I had EQT before but I will never use them again after this. Great tunes, great service."
Verified S3 Owner
Audi S3 8V · Stage 2 · Switched from EQT
"The difference is night and day — my car feels quicker, smoother, and way more responsive. It honestly feels like a whole new car. The owner was incredibly helpful throughout the entire process and made sure the tune was exactly what I wanted."
Eddie
Audi A6 3.0T · Stage 1
4.6
Google Rating
Read All Reviews →

READY TO
UNLOCK IT?

Find your vehicle. Pick your stage. Feel the difference from your driveway.

Boost Dynamic Tuning specializes in ECU tuning, TCU tuning, and performance calibrations for Audi and Volkswagen vehicles. We offer Stage 1, Stage 2, Stage 3, and E85 flex fuel tunes for EA888 Gen 3, EA888 Gen 4, EA113, SIMOS 18.1, SIMOS 19.7 ECU platforms. Covering 2021-2025 Audi B9.5 A4/A5/Q5 45 TFSI mild hybrid, 2015-2021 Audi S3 8V, 2015-2019 Audi A3 8V, 2015-2021 MK7/MK7.5 GTI, Golf R, GLI, Jetta, Passat, and 2005.5-2008.5 Audi B7 A4 2.0T FSI. Features include multi-map switching, rolling anti-lag, crackle and pop overrun calibrations, E85 flex fuel with ethanol sensor, DSG DQ250/DQ381 TCU tuning, and valet mode. Remote OBDII flashing nationwide. AWD ProHub dyno development. Hilton Head Island, South Carolina.