Mazda 929 1973–1984 2.0L Round Port Headers – Hurricane HU110STM

Hurricane HU110STM headers (extractors) are designed for Mazda 929 2.0L models fitted with round-port cylinder heads. Replacing the restrictive factory exhaust manifold with a tubular header improves exhaust flow and helps improve torque, throttle response and engine performance.

Round port cylinder head only – check exhaust port shape before ordering.

Please check availability and current lead time before ordering.

Key Features

• Designed for Mazda 929 2.0L
• Suitable for round-port cylinder heads only
• 38mm primary pipes
• 45mm (1¾") outlet
• Press-bent header design
• Australian made

Construction

• Steel tubular header construction
• Press-bent primary pipes
• Designed to replace the restrictive factory exhaust manifold

Additional Options

• Header gasket: See product code HG110

Vehicle Fitment

• Make and model: Mazda 929
• Year range: 1973–1984
• Engine: 2.0L
• Cylinder head: Round exhaust ports only

Header Specifications

• Part number: HU110STM
• Primary pipes: 38mm (1½")
• Outlet: 45mm (1¾")
• Design: Press bent
• Recommended gasket: HG110

Fitment Notes

• Round-port cylinder head only
• Check the exhaust port shape before ordering, particularly where the engine or cylinder head may have been changed
• Older vehicles may have modified or non-original exhaust systems and may require adaptation when connecting the headers to the existing exhaust

What’s Included

• HU110STM header assembly
• Gasket sold separately

Recommended With

• HG110 header gasket
• Compatible exhaust pipework to connect the 45mm header outlet to the vehicle's exhaust system

Why Good Headers and Exhaust Systems Matter

• On average, a 2.0L engine draws ~4,000 L of air per minute and expels ~12,000 L per minute at 4000rpm

Installation Tips

• Confirm the cylinder head has round exhaust ports before installation
• Trial fit the header and check clearance before completing installation
• Check engine mounts, exhaust hangers and existing pipework for wear or damage
• Older or previously modified exhaust systems may require fabrication to connect to the 45mm outlet

Warranty & Compliance

• Installation must comply with applicable state or territory vehicle modification, exhaust noise and emissions requirements
• Any required catalytic converters, emissions equipment or other factory pollution-control components must remain installed and operational where applicable

Frequently Asked Questions

Will these headers fit all Mazda 929 models?
No. HU110STM is designed for the listed Mazda 929 2.0L applications using a round-port cylinder head. Check the exhaust port shape before ordering.

How can I tell if I have the correct cylinder head?
Check the shape of the exhaust ports where the manifold attaches to the cylinder head. HU110STM requires the round-port configuration.

Are these a direct replacement?
They are designed for the listed application, but older vehicles may have had engine or exhaust modifications. Fitment and existing exhaust configuration should be checked before installation.

Is the gasket included?
No. The recommended HG110 header gasket is available separately.

Are these headers mandrel bent?
No. HU110STM uses a press-bent header design.

What size is the header outlet?
The HU110STM has a 45mm (1¾") outlet.

Are these headers currently available?
Availability and lead times can vary. Please check availability and current lead time before ordering.

Can I collect my order?
Yes. Pickup must be pre-arranged. Please contact us before ordering to confirm availability and arrange collection.

How much is freight?
Freight varies depending on your delivery location and where stock is available. Please contact us for freight charges before ordering.

Do you ship to the USA?
Yes. Please contact us for a freight quote before ordering. Import duties, tariffs, taxes and customs fees are not included in the product or freight price. Where applicable, these charges are finalised via a secure payment link before dispatch.

Customer Support

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