Sale

2015 -2019 AUDI A3 2.0t EA888.3 Ecu Tune

$500.00 $449.99
(3 reviews)
Width:
7.00 (in)
Height:
1.00 (in)
Depth:
6.00 (in)
Current Stock:
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Boost Dynamic Tuning

Audi A3 8V ECU Tune

Real Numbers. Real Dyno. On Camera.

Tap a stage — its curves light up, and every number you see has a video to back it.

Horsepower268.3WHP+62 over stock
Torque306.6WTQ+66 over stock
Fuel: 91/93 octaneRequired mods: none — stock hardware
Horsepower309.1WHP+102 over stock
Torque350.4WTQ+110 over stock
Fuel: true flex fuel — 93 to full E85, any mixRequired mods: flex fuel sensor + TCU tune + HPFP
Horsepower316.5WHP+110 over stock
Torque366WTQ+126 over stock
Fuel: 91/93 octaneRequired mods: high-flow exhaust
Horsepower344.7WHP+138 over stock
Torque395.6WTQ+155 over stock
Fuel: true flex fuel — 93 to full E85, any mixRequired mods: high-flow exhaust + flex sensor + TCU + HPFP
Horsepower463.6WHP+257 over stock
Torque403.2WTQ+163 over stock
Fuel: 93 octaneRequired mods: turbo upgrade + full supporting build
100200300400500200030004000500060007000
Stock baseline — 206.7 WHP / 240.4 WTQ STAGE 1 OUTPUT — 268.3 WHP / 306.6 WTQSTAGE 1 E85 OUTPUT — 309.1 WHP / 350.4 WTQSTAGE 2 OUTPUT — 316.5 WHP / 366 WTQSTAGE 2 E85 OUTPUT — 344.7 WHP / 395.6 WTQSTAGE 3 OUTPUT — UP TO 463.6 WHP / 403.2 WTQ

Stage 3 Turbo Options — Wheel Numbers on 93

TurboPeak WHPPeak WTQFuel Hardware
IS38 OEM-style365345–365HPFP upgrade
CTS IS38 Hybrid408365–385HPFP upgrade
Turbo Concepts Stage 3465400–420HPFP + LPFP + MPI 980cc injectors
APR DTR430400HPFP + LPFP + MPI

GT22 Garrett builds are also calibrated — running a different turbo? Contact BDT before purchase. Stage 3 calibrations include LPFP/HPFP fueling recalibration and a boost gauge calibrated for the new turbo.

If your tuner doesn't show before & after dyno videos, you're being lied to.

A dynamometer is a before-and-after measuring tool — not an absolute output number. Dyno brand, correction factor, strap-down, and weather all move the reading. What can't be faked is the delta: same car, same dyno, same day, stock vs tuned — on camera. That's what you're looking at above, and every pull is in the videos below.

 

How It Works — Flash It Yourself

No appointments. No screen-share. The free BDT Flasher app puts the tune in your driveway — plug in, pick your map, hit Flash. Your A3 sounds different in 20 minutes.

1

Download — grab the free BDT Flasher. One-click Windows installer, 30 seconds.

2

Plug In — Tactrix Openport 2.0 OBDII cable from your laptop to the port under the dash.

3

Sign In — your purchased tunes show up automatically. Pick your map.

4

Send It — hit Flash. 15–20 minutes, then pull out of the driveway.

Existing BDT customer? Text (843) 891-6687 and we'll load your tune into the flasher.

What's Included

5-Map SwitchingChange maps on the fly with the cruise control buttons
Rolling Anti-Lag (RAL)Build boost while moving — track / off-road use
2-Step / Boosted Launch2-step on manual • boosted launch on DSG
Crackle PopsBubble / Low / Medium / Intense / Off per map
True Flex FuelE85 stages — any ethanol content, no reflash
IAT + EGT Safety LogicOEM-grade protection strategies stay active
Speed Limiter RemovedFactory Vmax restriction deleted
Rev Limit RaisedMore usable RPM on every pull
Torque Limiters RaisedFactory torque caps lifted for full delivery
VVT OptimizationCam timing refined for response + spool
Refined Boost ControlSmoother ramp, reduced turbo lag
Boost Gauge Re-ScaledFactory gauge reads true boost (Stage 2+)
Auto Start/Stop Defaults OffNo more restart lag at every light
OBDII FlashingFlash it yourself at home with the BDT Programmer

Watch The Proof

Every stage's dyno pull, every feature, on video. Sound on.

Stage 1 — Stock vs Stage 1 Dyno

Stage 1 E85 — Dyno Pull

Stage 2 — Stock vs Stage 2 Dyno

Stage 2 E85 — Dyno Pull

Stage 3 — Live Dyno Pull

Multi-Map + RAL Live

Park Crackles Demo

Driving Crackles Demo

True Flex Fuel Demo

Map Switching Demo

 

What Your Car Needs, Per Stage

If it is not listed as required, the tune runs without it.

REQ Required before flashing REC Recommended Not needed
Part / Upgrade S1 S1 E85 S2 S2 E85 S3
Turbo UpgradeREQ
High-Flow ExhaustREQREQREQ
True Flex Fuel SensorREQREQ
TCU Tune DSG cars — recommended on 93 octane stages, required for E85 + Stage 3RECREQRECREQREQ
HPFP Upgrade (Autotech)REQREQREQ
LPFP Upgrade Stage 3 — scales with turbo choice*REQ
MPI 980cc Injectors (CTS) Stage 3 — scales with turbo choice*REQ
Intercooler Strongly recommended at Stage 2RECRECRECRECREQ
Air IntakeRECRECRECRECREQ
Drivetrain InsertsRECRECREC
Turbo Inlet PipeREC
Catback ExhaustREC

*Stage 3 fuel hardware scales with turbo choice — IS38 OEM-style and CTS hybrid builds require the HPFP upgrade only; Turbo Concepts builds require HPFP + LPFP + MPI 980cc; APR DTR builds require HPFP + LPFP + MPI.

Multi-Map Layout — All Power Stages

MAP 1MAX POWER • BUBBLE CRACKLES • RAL
MAP 2MAX POWER • LOW CRACKLES • RAL
MAP 3MAX POWER • MEDIUM CRACKLES • RAL
MAP 4MAX POWER • INTENSE FLAME CRACKLES • RAL
MAP 5OEM STOCK POWER • NO CRACKLES

Switch maps on the fly with the cruise control buttons — daily to race to valet in seconds.

Maintenance

Maintenance ItemInterval
SPARK PLUGS
NGK Racing Plugs — ngk.com/ngk-4905-r7438-8-racing-plug
15–20K mi
OIL CHANGE
5W-40 Liqui Moly • OIL FILTER = OEM ONLY
5K mi
REAR HALDEX FLUID (Quattro)30K mi
TRANSMISSION FLUSH / FILTER
OEM only
30K mi
MAP SENSORS
OEM only • Intake / before throttle body
80K mi
PCV ASSEMBLY80K 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.

 

Reviews

  • 5
    Stage 2 tune for audi a3 8v FWD!!!!

    Posted by London Rodgers on Apr 3rd 2026

    This tune is beautiful i’m not gon even lie ive had amazing experience and ive won on some scat packs now!

  • 5
    Best Tune I’ve Ever Experienced

    Posted by Tyriq on Mar 18th 2024

    This is easily most fun i’ve had in a car in a long time and it catches me by surprise everyday . First and foremost Trent Is The Nicest And The Most Easiest Tuner To Work With And Made Everything Easier For Me. If You’re In The Market For A Tune And You Stumble Along This One Make Sure To Pick It Because You Won’t Regret It.

  • 5
    BEST TUNE / TUNER AVAILABLE

    Posted by Tyriq Sealy on Mar 9th 2024

    Best tune i’ve ever had in my life and he made everything so simple and professional . Thank You So Much