Wastegates

Instead of replacing it with another OEM wastegate, why not buy an external wastegate here at CarMods Australia? We at CarMods Australia have some of the best turbo external wastegate options on the market, all at competitive prices.  

A wastegate (or waist gate, wastgate, or wast gate) is a device that helps to control boost pressure. Turbocharged cars come with internal wastegates from the factory that are built into the housings of their turbos. When the flow of the exhaust gases that spin their turbocharger turbines reaches certain levels, these internal wastegates open their by-pass valves to re-route excess exhaust gases back to the exhaust system. When everything is stock, factory internal wastegates are sufficient. However, when you add mods that crank up boost levels, they are unlikely to cope.

That’s where our aftermarket external wastegates come in. They are mounted between the up and down pipe of a car’s exhaust system, so they are entirely separate from your car’s turbo. External wastegates deliver two main advantages:

1. More flow: these aftermarket external wastegates are built with higher boost pressure thresholds than those of OEM wastegates, so they are ideal for tuned street/road-going or all-out track-focused race cars.

2. Better boost control: It comes standard with a middle spring, but you can also switch that spring with another. For example, using 5psi, 7psi, or 10psi springs, some wastegates can enable you to realize base boost pressures of 5 psi, 7 psi, 10 psi, 12 psi, 15 psi, 17 psi, or 22psi.     

Explore Our Range of Car Wastegates in Australia  

We at CarMods Australia have both mechanical and electronic wastegates. They are made from rigid, high-grade materials that can withstand intense heat and extreme boost pressures, e.g., chromium-nickel stainless steel or billet 6061 aluminum. They have been CNC machined to guarantee a perfect fit.

These wastegates are also packaged with all the accessories you will need to complete the installation, e.g., flanges, valve seats, clamp assemblies, blanking plugs, or vacuum nipples. Call our modding specialists at (07) 5649 8778 if you want more information about these products.

Frequently Asked Questions

Can you use an external wastegate on a car with a turbo that has an internal wastegate?

Yes, you can, but you’ll first have to block off the internal flapper of the stock wastegate, e.g., by welding it shut.

Is it possible for a turbo system to function without a turbo external wastegate?

In theory, it is possible if a turbo reaches its maximum turbine speed at your engine’s maximum RPM. However, this seldom happens, so it is safer to install a wastegate.