CORETUNED are your local Holden Performance specialists.


We offer many 'Performance packages' for VT-VZ Commodores including HSV


We can also tailor a custom package to suit your individual requirements

VT-VZ 5.7L and 6L


Stage 1: 


OTR Intake

Custom Tune


These are MAFless tuned with a VCM plastic or alloy OTR fitted


Stage 2:


OTR Intake

Full Exhaust System

Tri-Y or 4 into 1 Headers

High flow cats

Twin 2 1\2 inch exhaust

Custom dyno tune

Stage 3: Daily STREET Camshaft Package


The stage 3 package is suitable for standard auto and manual transmissions

This package gives excellent driveability with that idle everyone wants in a camshaft package


Package includes

VT/VZ Stage 2 package

Coretuned Custom Camshaft Kit

Custom dyno tune


Stage 4: Aggressive Camshaft Package

The stage 4 package is suitable for manual or high stall auto transmissions

This package gives good drive ability with an aggressive idle, this is for those looking for that idle with attitude and maximum performance.


Package includes

VT/VZ Stage 2 package

Coretuned Custom Camshaft Kit

Custom dyno tune

Stage 5: CNC Head and Camshaft Package

CNC ported heads added to the stage 3 or 4 package for the ultimate performance whether naturally aspirated or boosted.


Package includes

VCM OTR Intake

4 into one Headers

High Flow Cats

Twin 3 Inch Exhaust

Coretuned Custom Camshaft Kit

Coretuned CNC Ported Cylinder Heads 

Custom Dyno Tune



Contact us for information and pricing, we supply and fit most brands and types of superchargers 


We can supply and fit a bolt on turbo kit or, we can custom make a complete turbo kit to suit any model, and power level including intercooler pipework and exhaust

Contact us for information on our turbocharging

Contact us for more information and prices on our Holden packages

Copyright CORETUNED 2019

Contact us

1/93 Glenwood drive Thornton

NSW 2322

0437 044 726


Opening Hours

Mon-Fri: 8am - 5pm

Our services

  • Dyno tuning

  • Performance upgrades 

  • Performance exhaust systems

  • Engine Building

  • Diagnosis specialists

  • Aftermarket ECU installations

  • Transmisions calibration

  • Vehicle servicing and repairs