ECU & TCU Upgrades Auckland | Unitronic Official Tuning Stage 1-3 NZ | HarrysEuro
Audi ECU & TCU Upgrades
Bentley ECU & TCU Upgrades
Mercedes-Benz ECU & TCU Upgrades
BMW ECU & TCU Upgrades
Ferrari ECU & TCU Upgrades
Lamborghini ECU & TCU Upgrades
Land Rover ECU & TCU Upgrades
McLaren ECU & TCU Upgrades
Nissan ECU & TCU Upgrades
Porsche ECU & TCU Upgrades
SEAT ECU & TCU Upgrades
Skoda ECU & TCU Upgrades
Volkswagen ECU & TCU Upgrades
Unlock Power.
Sharpen Shifts.
Official Unitronic ECU & TCU tuning for every European performance car. Massive power & torque gains, lightning-fast DSG shifts, and perfect drivability — built for NZ roads and track use.
Why Upgrade Your ECU & TCU at HarrysEuro?
Factory maps are safe but restrict power. As official Unitronic partners we deliver huge horsepower & torque gains, quicker DSG shifts, launch control, and flawless drivability — fully compatible with all our other upgrades and installed the same day in our Auckland workshop.
Real Performance Gains
- Up to +75HP and +110Nm (Stage 2)
- 0.5–1.0 sec faster 0-100km/h
- Lightning-fast DSG shifts with TCU upgrade
- Improved throttle response & launch control
Upgrade Options
Stage 1
Street & daily driving
ECU tune + basic TCU optimisation.
Stage 2
Fast road & tuned cars
ECU + TCU + hardware support.
Stage 3 / Custom
Track & high-power builds
Full custom ECU/TCU mapping.
All options include free compatibility check and dyno time.
Dealer-Equipped, MTA Assured Workshop
Equipped to support late model European vehicles and performance builds.
Built for real-world performance
We fine-tune high-performance machines to suit how you actually drive.
Parts + servicing, under one roof
Specialise in performance parts, tuning, and in-house repairs with MTA-assured support.
How It Works
- 1. Confirm your exact make, model, year & current ECU/TCU setup
- 2. Discuss your power & driving goals
- 3. Recommend the perfect Stage package with personalised quote
- 4. Professional MTA-certified installation & mapping
- 5. Dyno test and handover the same day
Why Choose HarrysEuro?
- Official Unitronic Partner
- Dealer-level services without dealer prices
- Worldwide premium product brands
- 100+ real customer builds
- Lifetime technical support
Will it void my warranty?
Unitronic files are designed to be warranty-friendly; we can flash back to stock in minutes.
How much power will I gain?
Typical Stage 2 gains are +50-75HP depending on model — we dyno test every car.
Does it include TCU/DSG tuning?
Yes – faster shifts, higher torque limits and launch control included in every Stage.
How long does installation take?
Same day for most vehicles including full dyno run.