Direct Fit Catalytic Converters / Manifold Cat Converters

Upgrade or replace your catalytic converter with one from our extensive range, designed for seamless bolt-on installation and complete with factory-matching flanges and sensor ports.

Match your vehicle make, model, and engine to the exact product you need at competitive prices.

Direct-fit catalytic converters vs. universal units

Direct-fit catalytic converters are designed to replace factory-installed units, meaning they use the same dimensions, mounting flanges, and fittings as the original part. Installation is often as simple as bolting it on. 

Universal catalytic converters, on the other hand, aren't vehicle-specific and so need to be measured, cut, and welded to fit your exhaust system.

By matching your vehicle setup, direct-fit catalytic converters maintain the original pipe diameter of your exhaust system, supporting your engine's intended performance. 

If you’re looking to replace your old cat converter and install a new unit yourself (or want to prevent extra labour costs in fabrication), then a direct-fit catalytic converter is a great option.

Signs your catalytic converter may need replacing

If your vehicle’s performance feels low, it could be because of a clogged or damaged catalytic converter. 

Here are a few common exhaust system issues often related to catalytic converter performance: 

• P0420/P0430 codes. These codes may indicate reduced catalyst efficiency, meaning your catalytic converter could be the issue.

• Loss of engine performance. Damaged or clogged catalytic converters can reduce engine performance and responsiveness.

• Failed emissions testing. A failed emissions test may indicate your catalytic converter is no longer working efficiently and needs replacing.
  

• Rattling sound. If you hear any rattling, it could be a sign the internal ceramic honeycomb structure of your converter has come loose.
  

• Sulphur smell. If there’s a strong smell coming from your exhaust, it could indicate your catalytic converter isn’t processing your exhaust’s gases correctly. 

If you notice any of these symptoms, we recommend inspecting the catalytic converter for any obvious signs of damage and having the vehicle professionally diagnosed by a mechanic if the cause isn’t clear. Diagnosing the issue early on can help to prevent any further damage.

Knowing which type of catalytic converter your vehicle uses

Not sure which catalytic converter your vehicle uses as part of its exhaust system? Here’s how to identify the right replacement. 

Manifold catalytic converters

Also known as MCVs or close-coupled cat converters, these units are common in modern 4-cylinder and V6 engines. 

They’re built directly into the exhaust manifold, where gases from the engine’s cylinders are collected. Because they’re closer to the engine, they reduce emissions earlier in the process.

Underfloor catalytic converters

Underfloor catalytic converters are mounted further down the exhaust system compared to manifold catalytic converters. They’re commonly found on utes, 4WDs, vans, and some passenger vehicles.

Because these converters sit away from the engine, they take longer to heat up and convert gases. These units, when direct-fitted, replace the factory converter without modifying the exhaust.

The type of catalytic converter your vehicle needs depends on its factory exhaust design.

Finding the right catalytic converter for your vehicle  

We stock direct-fit catalytic converters for a wide range of vehicle types, including:

• Holden Commodore (VE, VF, and VZ)

• Toyota Hilux and LandCruiser

• Ford Falcon and Ranger

• Hyundai i30 and IX35

• Kia Sportage

• Nissan Navara and Patrol

Small differences like engine variants, production dates, or the configuration of your exhaust system can impact how it fits. If you’re unsure which catalytic converter suits your exact vehicle, compare it with your original converter before ordering the unit. 

Stay roadworthy with a direct-fit catalytic converter  

A catalytic converter is an essential part of your vehicle’s emissions control system, helping reduce harmful exhaust emissions and meet Australian roadworthy requirements. 

Aussie vehicles are built to meet Australian Design Rules (ADR), including ADR 79, which governs vehicle emissions. If you’ve found your factory cat converter is damaged, replacing it with a direct-fit cat converter helps to restore your vehicle’s emissions performance.

Direct-fit catalytic converters are made for vehicles originally certified to emissions standards such as Euro 3, Euro 4, and Euro 5. We recommend always choosing a replacement unit that matches your vehicle’s original emissions specification.  

Gain peace of mind on the road

For more than 50 years, we’ve been Australia’s trusted source for supplying quality exhaust components to workshops, mechanics, and Aussie car enthusiasts. We stock a wide range of premium direct-fit catalytic converters built to handle harsh Australian climates. 

Our quality aftermarket units optimise engine airflow all the while supporting your vehicle’s original emissions system, giving you confidence in your vehicle on the road.

We provide fast, nationwide shipping on all our parts, so place your order online with us today. 

If you’ve got a question, our friendly and dedicated expert support team is happy to help.

FAQs

What is the difference between a direct-fit catalytic converter and a universal converter?

A direct-fit catalytic converter is a vehicle-specific replacement designed to bolt directly onto your factory exhaust system. Unlike universal converters, they don’t require cutting or welding, making installation quicker and easier. 

Are direct-fit catalytic converters legal for Australian roadworthy inspections?

Direct-fit catalytic converters support Australian roadworthy requirements by helping restore your vehicle’s emissions control system. 

Do direct-fit converters come with installation gaskets and mounting hardware?

Some direct-fit catalytic converters include installation gaskets and mounting hardware, while others need a separate fitting kit. We recommend checking the individual product listing to see what’s included.

Can I install a direct-fit catalytic converter myself, or do I need a professional exhaust mechanic?

While experienced DIYers could install direct-fit catalytic converters on their own, professional installation is often recommended to ensure a proper fit, leak-free seal, and reliable performance.