Sale

2015 -2019 AUDI A3 2.0t Stage 2

$550 $450
(2 reviews)
Width:
7.00 (in)
Height:
1.00 (in)
Depth:
6.00 (in)
Current Stock:
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BOOST DYNAMIC TUNING

BDT Stage 2 ECU Tune

2015–2021 Audi A3 (8V • EA888 Gen 3 • IS20 • Quattro

Your A3 already delivers that clean Audi balance of comfort and punch — but from the factory it’s still holding back. BDT Stage 2 unlocks what your 8V A3 was meant to feel like: sharper throttle, much harder mid-range pull, and power that stays smooth all the way to redline. The result is a car that feels lighter, quicker everywhere, and way more fun every time you roll into boost.

Stage 2 IS20 Calibrated 5 Map Switching OEM Safety Logic
Audi A3 Stage 2 hero
IS20 STAGE 2
Harder midrange. Stronger pull through every gear.
OBDII flashing
REMOTE FLASHING
No ECU shipping. Flash at home via OBDII.
Performance hardware
BOLT-ON READY
Downpipe + intercooler for repeatable pulls and safer temps.
 
 
Stage 2 Requirement: A high-flow downpipe is required. An upgraded intercooler is strongly recommended.

Fitment & Compatibility

Confirm your exact engine and hardware before purchase.

 

Vehicle: 2015–2021 Audi A3 (8V) 2.0T

Engine: EA888 Gen 3 • IS20 turbo

  • Quattro 
  • DSG supported
  • Remote OBDII flashing compatible

Stage 2 Driving Feel

  • Throttle: sharper tip-in + stronger response
  • Midrange: much harder pull where you actually drive
  • Boost: smoother ramp with less “surge”
  • Daily: OEM-smooth cruising, violent when you want it
 

91/93 OCTANE maps vary by file (Map 4 requires 100 octane).

Unlock the Full Potential of Your Audi A3 (8V)

Exclusively Tuned by Boost Dynamic Tuning — Built by Enthusiasts, for Enthusiasts

If you own an A3, you didn’t buy it to feel “almost quick.” You bought it because it’s the perfect daily that can still surprise people. At Boost Dynamic Tuning, we don’t do generic flashes. We write in-house Stage 2 calibrations that bring your EA888 Gen 3 to life using real data, real testing, and refinement you’ll notice instantly.

With 11+ years of hands-on tuning experience, dyno-verified development, and street/track validation, our Stage 2 ECU Tune transforms your A3 into a confident daily weapon — smooth when you want it, savage when you don’t. No gimmicks. No mystery additives. Just fast, reliable, repeatable performance.

Why Choose BDT?

  • Audi/VAG-Specific Tuning Expertise: Purpose-built for the EA888 Gen 3 IS20 platform using 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 A3 via OBDII at home. No ECU shipping. No shop scheduling.
  • Dyno-Tested & Street-Proven: Backed by data and validated under real load, not theory.

Stage 2 Highlights

  • 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
  • Intake Air Temp Safeties + EGT Safety Logic
  • Speed Limiter RemovedNeutral/Park Rev Limit Raised
  • Auto Start/Stop Defaults Off (feature remains functional)
  • Torque Limiters RaisedFuel/Torque Request Optimized
  • Boost Gauge Re-ScaledVVT Optimization
  • Overrun / Crackle Pops (optional) • Low/Medium/Intense
  • Refined Boost Control — smoother ramp + stable long pulls
  • Reduced Turbo LagLPFP/HPFP Targets Optimized
  • OBDII Port Flashing

Crackle Pops — Controlled Overrun

Add real auditory character to your A3 with overrun/crackle — perfect for owners who want aggressive sound on decel or quick revs. Subtle on stock exhaust, rowdy with a downpipe or full system.

  • Selectable Low / Medium / Intense levels
  • RPM-dependent windows (Dynamic mode / per-map)
  • Safety reduction if exhaust temps climb too high

⚙️ Boost Control Recalibrated

The factory A3 boost curve can feel conservative and uneven. BDT rewrites boost logic to deliver:

  • Smoother, more linear boost ramp
  • Instant throttle engagement
  • Consistent power delivery through every gear

This isn’t just tuning — it’s precision-built calibration that transforms the way your A3 drives.

BDT Multi-Map Switching + RAL Live

Preview map switching behavior and Rolling Anti-Lag in action.

Power Gains

Expected gains on 93 octane with required downpipe: up to 315 WHP / 365 WTQ (approx. 362 HP / 420 TQ at the crank).

 
Stage Horsepower Torque
Stock Audi advertised numbers 220 HP 258 TQ
Stock BDT dyno numbers 260 WHP 225 WTQ
Stage 2 (wheel) 315 WHP 365 WTQ
Stage 2 (crank) 362 HP 420 TQ

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

Stage 2 Hardware Requirements

Stage 2 Hardware Requirements (quick view): Required downpipe for Stage 2 tuning on the Audi A3 8V IS20. Intake and upgraded intercooler are recommended for best temps, consistency, and traction. DSG vehicles perform best with a BDT TCU tune.

 

Quick view:

  • Required: High-flow downpipe / catalytic converter removed (race/off-road use)
  • Recommended: Intake, upgraded intercooler, drivetrain insert upgrades
  • Highly recommended: BDT TCU tune (especially DSG)

Upgrade matrix:

Part / Upgrade Required Recommended
High-Flow Downpipe YES
Upgraded Intercooler YES
Air Intake YES
Drivetrain Insert Upgrades YES
TCU Tune (DSG) HIGHLY

Multi-Map Layout

  • 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 — NORMAL TIMING, RAL ON, 2-Step ON, Pops ON
  • Map 4: Race — HIGH BOOST, HIGH TIMING, RAL ON, 2-Step ON, Pops ON, 100 OCTANE REQUIRED
  • Map 5: Valet — RAL OFF, 2-Step OFF, Pops OFF

Frequently Asked Questions

 

Q: What mods are required for BDT Stage 2 on my Audi A3 8V?
A: Stage 2 requires a high-flow downpipe / catalytic converter removed. Intake, intercooler, and drivetrain inserts are strongly recommended for best temps, consistency, and traction.

 

Q: Is Stage 2 safe on the stock IS20 turbo?
A: Yes — when the required hardware and maintenance are followed. Stage 2 is built around safe boost, EGT, and IAT targets with multiple layers of protection to keep the IS20 healthy long-term.

 

Q: What fuel do I need?
A: Maps 1–3 are designed for 91/93 octane depending on your file. Map 4 requires 100 octane. If you don’t have the fuel, don’t run the map.

 

Q: Do I need a TCU tune for DSG?
A: You don’t need it to flash Stage 2, but it’s highly recommended. It improves clutch pressure, shift logic, and torque handling so the car performs the way it should.

 

Q: How does multi-map switching work?
A: You switch between 5 maps on the fly using cruise control buttons. Each map has its own boost/behavior setup so your A3 can go from daily to race to valet in seconds.

Maintenance (Read This)

IF YOU WANT YOUR CAR TO SURVIVE, THESE MUST BE DONE!

I WANT YOUR CAR TO SURVIVE MULTIPLE YEARS TO COME WITH MY TUNE. I DON'T JUST RECOMMEND THESE FOR FUN. I HAVE TUNED COUNTLESS AUDI 8V CARS AND THIS IS WHAT I'VE EXPERIENCED THROUGH THE YEARS. IF YOU CAN'T AFFORD THE PARTS, PLEASE DON'T TUNE YOUR CAR. NOT BEING HARSH, BEING STRAIGHTFORWARD SO YOU DON'T BLAME MY TUNE THAT ARE ON COUNTLESS CARS WITHOUT ISSUES BECAUSE THEY FOLLOW MY MAINTENANCE GUIDE.

 
Maintenance Schedule Miles
SPARK PLUGS
NGK Racing Plugs
https://www.ngk.com/ngk-4905-r7438-8-racing-plug
15–20K
OIL CHANGE
5W-40 Liqui Moly
OIL FILTER = OEM ONLY
5K
REAR HALDEX FLUID (Quattro) 30K
TRANSMISSION FLUSH / FILTER
OEM only
30K
MAP SENSORS
OEM only • Intake / before throttle body
50K
PCV ASSEMBLY 50K
INJECTORS + CARBON CLEANING
Do them on time to avoid misfires, lean conditions, and long-term damage.
65K

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
    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