Weistec NZ * Tuning & Performance Parts
WEISTEC TUNING IN NZ.
Harrys Euro is now a Weistec dealer in New Zealand. From ECU and TCU tuning to advanced performance hardware, we can source the Weistec solution you need — right here in New Zealand.
START WITH THE TUNE.
Performance isn't simply about bolting more parts onto a car. The calibration is where the engine, transmission and supporting hardware are brought together as one package.
Weistec develops vehicle-specific ECU and TCU calibration solutions across a wide range of high-performance platforms. Harrys Euro can help identify the right Weistec solution for your vehicle, current modifications and future power goals.
BUILT AROUND SOFTWARE.
Whether your car is standard, already modified, or being built toward a much larger power target, talk to us before choosing the next upgrade.
ECU Tuning
Vehicle-specific engine calibration designed to unlock performance through optimised boost, ignition, fuelling and torque strategies where supported.
Check your vehicleTransmission Tuning
TCU calibration for supported transmissions can complement the engine tune with revised shift behaviour, torque handling and performance-oriented transmission control.
Ask about TCU tuningModern ECU Unlocks
Selected newer Bosch MG1 and related control units require additional unlocking before tuning. We can confirm compatibility for supported Mercedes-Benz and BMW applications.
Check ECU compatibilityComplete Packages
Planning intake, exhaust, cooling, turbo or other upgrades? We can build the hardware and tuning plan together instead of treating every modification as an isolated part.
Plan your buildFIND YOUR PLATFORM.
Some of the commonly supported Weistec tuning platforms. Exact availability depends on model year, ECU software, engine and vehicle specification.
LOCKED ECU? ASK US.
Modern European vehicles are increasingly protected by more sophisticated ECU security. Weistec supports unlocking solutions for selected Bosch MG1 ECUs used across newer Mercedes-Benz and BMW applications.
- Selected factory-locked ECUs
- Selected ECUs locked after dealer software updates
- Bench or OBD flashing support where applicable
- Vehicle and ECU compatibility checked before proceeding
HOW IT WORKS IN NZ.
You don't need to work out every ECU number, tune version or supporting modification yourself. Start with the car and the result you want.
Tell Us Your Car
Send us your REGO or VIN, model, year, engine and any modifications already fitted.
Choose Your Goal
Daily-driver response, a stronger street package, supporting mods or a serious power build — tell us what you actually want from the car.
We Check Weistec
We confirm the suitable tune, ECU requirements, supporting hardware, product availability and recommended path forward.
Supply + Support
Harrys Euro handles the New Zealand side — sourcing, workshop planning and installation support where applicable.
NEED A WEISTEC PART?
Not everything we can supply needs to be listed on harryseuro.co.nz.
If you've found a Weistec product for your vehicle, send it to us. We can source Weistec performance hardware for New Zealand customers, subject to availability and vehicle compatibility.
ENGINEERING, NOT GUESSWORK.
Weistec's approach combines calibration, engineering, product development and testing — the reason the brand has become closely associated with serious European performance.
Calibration Development
ECU and TCU solutions are developed around specific powertrains, vehicle behaviour and supporting modifications rather than treating software as a generic add-on.
Engineering + Testing
Weistec combines vehicle calibration with engineering, development and testing to create integrated performance solutions.
Hardware + Software
From a tune on a standard vehicle to turbo, supercharger and supporting-hardware builds, software and mechanical upgrades can be planned as one system.
WEISTEC NZ.
Still unsure whether Weistec supports your vehicle? Send us the details and we'll check it for you.
Ask UsIs Harrys Euro a Weistec dealer in New Zealand?
Can Harrys Euro source Weistec products that aren't listed on your website?
Do you only offer Weistec tuning for Mercedes-AMG?
My Mercedes or BMW has a locked ECU. Can it still be tuned?
Do I need performance hardware before getting a tune?
I already have aftermarket parts fitted. Can I still use Weistec tuning?
What information should I send for a quote?
WHAT DO YOU WANT YOUR CAR TO DO NEXT?
Start with the vehicle. Tell us the modifications you already have and where you want to take the build. We'll help identify the right Weistec tuning and hardware solution for you.
Product, tuning and ECU compatibility varies by vehicle, engine, transmission, model year, ECU/TCU hardware, software version and existing modifications. Performance figures vary according to vehicle condition, fuel, supporting hardware and operating conditions. Some performance products or calibrations may be intended for competition or off-road use only. Vehicle owners and installers are responsible for ensuring compliance with applicable New Zealand laws and regulations. Harrys Euro will confirm applicable product and vehicle requirements before supply or installation where possible.