Best Turbocharger Upgrades for Australian Performance Cars

Best Turbocharger Upgrades for Australian Performance Cars

If you're chasing serious power gains, few modifications deliver results as dramatically as a turbocharger upgrade. Whether you're running a WRX on the weekend or pushing a Skyline R34 on the track, the right turbo upgrade can transform your car's performance, but only if you approach it correctly. In this guide, we'll walk through everything you need to know about turbo upgrades in Australia: the options available, the vehicles that benefit most, and the supporting mods you'll need to make it all work.

Drop-In Turbo Upgrades vs Full Turbo Kit Replacements

Before you start shopping, it's important to understand the difference between these two common upgrade paths, because they're suited to very different goals.

Drop-In Turbo Upgrades

A drop-in (or direct replacement) turbo is designed to bolt onto your existing exhaust and intake manifold flanges with minimal modification. These units are typically based on the factory turbo's housing and mounting points but feature upgraded internals, a larger compressor wheel, billet impeller, or ceramic ball bearings, to improve flow and spool characteristics.

  • Pros: Relatively straightforward installation, no custom piping required, often compatible with factory boost targets (with a tune), lower cost entry point
  • Cons: Power ceiling is limited by the housing design, may not support aggressive fuelling changes
  • Best for: Street builds looking for 20–50% power increases without extensive engine bay modifications

Full Turbo Kit Replacements

A full turbo kit involves replacing the factory turbo with an entirely new unit, often a larger frame turbo, along with upgraded manifolds, downpipes, and intercooler pipework. This is the path for serious power targets.

  • Pros: Dramatically higher power potential, ability to spec the exact turbo for your power goals, better thermal efficiency at high boost
  • Cons: Higher cost, more complex installation, mandatory tune, potentially longer spool time depending on turbo selection
  • Best for: Track builds, drag cars, or any build targeting over 300kW at the wheels

The right choice depends on your goals and budget. Most street-focused builds benefit most from a high-quality drop-in upgrade paired with a professional tune.

Top 5 Vehicles for Turbo Upgrades in Australia

Australia has a thriving performance car community, and certain platforms have developed exceptional aftermarket support. Here are the vehicles we see most frequently, and the turbo options we recommend for each.

1. Subaru WRX (GD/GE/VA)

The WRX is arguably Australia's most popular performance platform. The EJ205/EJ257 engine responds brilliantly to turbo upgrades, and aftermarket support is second to none.

  • Blouch Dominator 2.5XT-R: A popular full replacement unit offering excellent mid-range torque, ideal for street/strip WRX builds targeting 280–350kW
  • GT Pumps Drop-In Upgrade: A well-regarded bolt-on option for EJ-series WRX builds, delivering improved spool and top-end flow with minimal installation complexity

2. Mitsubishi Lancer Evolution (VIII/IX)

The EVO's 4G63 is a legendary forced induction platform. It revs hard, spools quickly, and takes power remarkably well.

  • GT Pumps EVO Turbo Upgrade: A strong choice for 4G63 builds, delivering reliable power gains with excellent spool characteristics and a broad power band suited to both street and track use

3. Toyota Supra MK4 (JZA80)

The 2JZ-GTE is legendary for good reason, its cast iron block and forged internals can handle enormous power with basic bolt-ons. Single turbo conversions are the go-to upgrade path.

  • Garrett GTX3584RS: The gold standard single turbo conversion for 2JZ builds, capable of supporting 600–900kW with appropriate supporting modifications

4. Nissan Skyline R33/R34 GT-R (RB26DETT)

The RB26 twin-turbo setup is iconic, but the factory ceramic turbos are a known weak point. Upgrading to steel-wheeled units, or going single, is a popular path.

  • Garrett GTX2867R Twin Kit: Ball-bearing units with billet compressor wheels, excellent spool, strong to 8,500 RPM, supports 350–450kW in twin configuration

5. Honda Civic Type-R (EP3/FD2/FK8)

The Type-R has evolved into a serious turbocharged platform with the FK8/FL5, while the earlier NA variants benefit from turbo kit additions.

  • Garrett G25-660 (FK8 upgrade): Garrett's latest generation compressor technology makes this one of the best flowing turbos for the K20C1 platform

Supporting Mods You'll Need

A turbo upgrade without the right supporting modifications is a recipe for disappointment, or worse, engine damage. Here's what you'll need to budget for alongside your turbo.

Blow-Off Valves and Wastegates

Proper boost management and compressor surge protection are essential for any turbo build. These Turbosmart components are relocated here from their respective vehicle sections because they complement any platform, not just one.

  • Turbosmart GenV WG38: Essential for any single turbo conversion, including the 2JZ Supra build, this wastegate gives your tuner accurate, stable boost control across the rev range
  • Turbosmart Kompact BOV (Dual Port): Recommended for RB26-based Skyline builds, this blow-off valve prevents compressor surge and delivers that classic twin-turbo sound
  • Turbosmart BOV Vee Port Pro (FK8): Designed specifically for the FK8 intercooler pipe, this unit retains DV function while adding recirculation flexibility

Intercooler

More boost means more heat. Your factory intercooler is almost certainly undersized for a turbo upgrade, and heat soak will rob you of the power gains you're after. Process West makes some of Australia's best front-mount intercoolers for WRX and EVO platforms, with full kits that include all pipework. For Supra and Skyline builds, a quality front-mount from Plazmaman or similar is essential.

Intake

Your turbo needs to breathe. An upgraded cold air or high-flow short ram intake reduces restriction and helps the new turbo reach its potential. Check our cold air intake range for platform-specific options. AEM and AFE are popular choices that pair well with most of the turbos listed above.

Boost Controller

GFB and Turbosmart are the two brands we recommend most. An electronic boost controller like the Turbosmart e-Boost Street or GFB G-Force 3 lets your tuner set accurate, repeatable boost targets and gives you in-car control over boost levels. For track use, an electronic unit is non-negotiable, as boost creep at high RPM can be catastrophic.

Tune

This is not optional. A professional engine tune by a qualified mapper is absolutely mandatory for any turbo upgrade. Running a bigger turbo on a factory ECU map will result in lean air-fuel ratios, detonation, and a very expensive engine rebuild. Budget at least $800–$1,500 for a quality dyno tune in Australia, it's the best money you'll spend on the build.

Frequently Asked Questions

Is a Bigger Turbo Always Better?

No, and this is one of the most common misconceptions in the performance car world. A larger turbo flows more air, but it also takes longer to spool. On a street car, a massive turbo that doesn't come on boost until 5,000 RPM will actually feel slower than a well-matched smaller unit. The best turbo for your build is the one that delivers peak power in the RPM range you actually use. Work with your tuner to define a power target first, then spec the turbo around it.

Do I Need a Tune After a Turbo Upgrade?

Yes, always. This applies to both drop-in upgrades and full kit replacements. Even a "plug and play" drop-in turbo changes the airflow characteristics of your engine, and the factory ECU map will not compensate correctly. A tune is what separates a reliable, powerful result from a dangerous gamble.

Are Upgraded Turbos Legal in Australia?

This depends on your state and the modification itself. Generally speaking, turbo upgrades that result in power increases beyond 20% of the vehicle's rated output may require engineering certification. Modifications that affect emissions compliance can also trigger inspection requirements. In Queensland, NSW, and Victoria, significantly modified vehicles must be inspected and may require an engineer's report. We strongly recommend checking with your state's transport authority before fitting a new turbo, and always use a reputable installer who understands compliance requirements.

Ready to Upgrade Your Turbo?

Whether you're after a simple drop-in improvement or building a serious power figure, we've got the turbos, intercoolers, boost controllers, and supporting parts to get you there. Browse our full range of turbo upgrade kits and replacement turbos at Car Mods Australia, or get in touch with our team for a recommendation specific to your vehicle and power targets.

Shop Turbo Upgrades → carmodsaustralia.com.au/engine/turbo-superchargers/turbos/