Collection: Diff Breathers

About this range

1 product

Buying guide

Engine and driveline add-ons explained

Catch cans, pre-filters, breathers and throttle controllers are made for specific engines. Here's what to check so the part suits yours.

  1. Made for your engine

    These parts are engine specific, often down to the engine code and build date. Check the listing's fitment against your vehicle.

  2. What it actually does

    A catch can collects oil mist from the engine's breather before it reaches the intake. A pre-filter catches fuel contaminants before the factory filter. A throttle controller changes how the accelerator pedal responds.

  3. Emissions

    VicRoads' general approvals cover most electrical work, but not changes that affect emissions or safety systems (VSI 8). Anything that changes how the engine runs needs that check.

  4. Servicing

    Catch cans need draining and filters need changing on a schedule. Check the maker's service interval before you buy.

Pick by engine, not just by model

The same model often comes with several engines, and each takes a different catch can, pre-filter or breather kit. Have your engine code and build date ready, and check the listing's fitment before you order.

Common questions

Does a throttle controller add power?

No. It changes how quickly the engine responds to the accelerator pedal, not the engine's output.

Does a catch can need maintenance?

Yes. The collected oil has to be drained regularly; the maker's instructions give the interval.

Will a performance chip affect my registration?

VicRoads' general approvals don't cover changes that affect emissions (VSI 8). Check how any engine change is approved before fitting it.

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