Unleash the BEAST
EXPERIENCE HIGH-END ENGINE TUNING SERVICE WITH INDUSTRY PROFESSIONALS IN ECU PROGRAMMING SERVICES & TECHNOLOGIES
- CAR, BIKE, MARINE & TRUCK Tuning Services
- ONSITE and OFFSITE Tuning Services
- RETAIL & COMMERCIAL Tuning Services
- EMISSION Coding Services
- FILE SERVICE for Dealerships Nationwide
How Can We Help?
Car Owners
– RETAIL –
- Onsite and offsite tuning
- Increasing engine performance
- AdBlue/DPF/EGR emission coding
- Diagnostics
- Retail opening hours 9am till 5pm, Monday to Friday. Saturday 9 till 2pm
- UNLEASH THE BEAST
- Interested? Call to action below
Tuning Dealers
– COMMERCIAL –
- You keep & manage your customer base
- You control your bookings and pricing
- We ship you ECU programming tools
- We train you how to read & write ECUs
- We give you access to our FILE SERVICE
- We provide a 7am-7pm support, 6 days a week
- Interested? Fill out our form below
Why Choose Us
Why us?
At Xtremetuning we strive to provide a unique driving experience through ECU remapping, by paying attention to the details and giving an individualized service – informing you of all expenses and requirements before work commences. By utilizing both mechanical and advanced computer programming skills, combined with the network of local partners, we aim to be one of the leading ECU chiptuning companies in New Zealand.
🔥 **THE LEGEND OF THE L5P STARTS HERE** 🔥
Some trucks are built to work.
Some trucks are built to last.
But the Silverado 2500HD Duramax… that thing was built to dominate.
When Chevy dropped the L5P, it wasn’t just another diesel. It was a statement.
A 6.6‑litre, all‑American, iron‑fisted V8 that rolled off the factory floor with 445 HP @ 2000 RPM and 1234 N·m of torque @ 1200 RPM. Enough to pull a house off its foundations and look good doing it.
It’s the kind of truck that makes petrol heads stop mid‑sentence.
The kind of truck you don’t drive… you command.
But here’s the truth every Duramax owner knows deep down:
GM left power on the table. A LOT of it.
And that’s where we come in.
⚡ STAGE 1 ECU REMAP — UNLOCK THE BEAST ⚡
We take your already‑impressive L5P and turn it into a weapon.
+130 HP**
+320 N·m torque**
This isn’t a throttle controller.
This isn’t a placebo.
This is **real tuning**, real engineering, real gains.
Your Silverado goes from strong… to **ferocious**.
From quick… to **unstoppable**.
From “nice truck” to **who tuned that thing?**
FACTORY vs TUNED performance
445 HP → ~575 HP
1234 N·m → ~1550 N·m
This is the Duramax the factory *wished* they could release.
📲 Ready to unleash your L5P?
Send us a message and let’s wake up your Silverado.
xtremetuning.co.nz
WhatsApp: 027 209 9992
🎯 Want to Offer Tuning at Your Workshop?
Join our growing dealer network and unlock new revenue streams with full support from Xtremetuning NZ.
📩 Become a Dealer: xtremetuning.co.nz/become-a-dealer
💬 Message us on Facebook
📧 info@xtremetuning.co.nz
📞 0272099992
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Dealer update!
We are expanding our vehicle coverage to new horizons! The Bosch M17.8.4 ECU, found in the famous Tata Nano city car, is now fully supported on your AutoTuner Tool.
Even though the Nano is one of the most compact cars on the market with its tiny 0.624L engine, it still benefits from optimization! Whether you need to make specific map adjustments, improve drivability, or cater to international market requests, you now have the perfect solution.
⚡ Methods: 100% OBD & Bench (Normal Read – NR) Enjoy maximum flexibility for your tuning jobs! You can read and write this ECU directly through the diagnostic port (OBD) for ultimate time-saving, or work via Bench on your desk depending on your preference and workflow.
Supported Vehicle & Engine:
Tata Nano (2008+) – 0.624L engine
Update your tool and take advantage of this new compatibility today!
🎯 Want to Offer Tuning at Your Workshop?
Join our growing dealer network and unlock new revenue streams with full support from Xtremetuning NZ.
📩 Become a Dealer: xtremetuning.co.nz/become-a-dealer
💬 Message us on Facebook
📧 info@xtremetuning.co.nz
📞 0272099992
WhatsApp: 027 209 9994
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