Mazda 323 1994–1998 1.8L BP TX3 Astina Wildcat Exhaust Headers WILD009

Wildcat WILD009 exhaust headers (extractors) are designed for selected Mazda 323 TX3 and Astina KF / KH models from 1994–1998 fitted with the 1.8L BP 16-valve DOHC petrol engine.

Featuring an interference-style header design, WILD009 uses 1.50" primary pipes, 1.75" secondary pipes and a 2.00" outlet. This combination is designed to improve exhaust gas flow and scavenging while maintaining good exhaust velocity, helping improve torque, throttle response and usable engine performance.

WILD009 replaces the factory exhaust manifold and extends down towards the existing exhaust system. Welding is required at the header outlet to connect the headers correctly to the downstream exhaust. Professional installation by an experienced exhaust workshop is recommended.

Please check availability and current lead time before ordering.

Key Features

• Designed for selected Mazda 323 TX3 and Astina KF / KH applications
• Suits the 1.8L BP 16-valve DOHC petrol engine
• Interference-style design for street performance applications
• 1.50" (approximately 38mm) primary pipes
• 1.75" (approximately 45mm) secondary pipes
• 2.00" (approximately 51mm) outlet
• Replaces the factory exhaust manifold and front section
• Welding required at the header outlet
• Designed to improve exhaust flow, torque, throttle response and engine performance

Construction

• Australian-made Wildcat performance headers
• Quality mild steel construction
• Strong welded construction for durability
• Formed pipework designed for efficient exhaust gas flow
• Heat-resistant painted finish rated to approximately 600°C

Additional Options

• RBG009: Exhaust manifold/header gasket available separately
• Replacement exhaust manifold studs and nuts where required
• High-temperature exhaust gasket sealant where appropriate
• Exhaust fabrication and connecting pipework as required

Vehicle Fitment

• Make: Mazda
• Model: 323 TX3 / Astina
• Series: KF / KH – selected applications
• Year Range: 1994–1998
• Engine: BP
• Engine Capacity: 1.8L
• Engine Type: 16-valve DOHC petrol

Fitment Notes

• Designed for selected Mazda 323 TX3 and Astina KF / KH models from 1994–1998 fitted with the 1.8L BP engine
• Welding is required at the header outlet to connect to the existing exhaust system.
• This is not a complete bolt-on exhaust installation
• Recommended exhaust manifold/header gasket: RBG009
• Engine, exhaust or other vehicle modifications may affect fitment
• Check the existing exhaust configuration before ordering if the vehicle has been modified
• Please check availability and current lead time before ordering.

What’s Included

• 1 x Set Wildcat WILD009 exhaust headers / extractors
• Outlet components as supplied

Recommended With

• RBG009 exhaust manifold/header gasket
• Replacement manifold studs and nuts where existing hardware is worn or corroded
• High-temperature exhaust gasket sealant where appropriate
• Suitable exhaust pipe and fabrication components for the welded connection
• Quality performance exhaust system where further exhaust flow improvement is required

Why Good Headers & Exhaust Systems Matter

At 4,000 rpm, the 1.8L BP petrol engine theoretically draws in approximately 3,600 litres of intake air per minute and can expel around 10,800 litres of hot exhaust gas per minute at approximately 600°C.

A well-designed header and exhaust system helps manage this high gas flow efficiently, reducing restriction and improving exhaust scavenging, torque, throttle response and engine performance.

Installation Tips

• Apply penetrating lubricant such as WD-40 or similar to the manifold studs, nuts and exhaust fasteners before removal
• Remove all traces of the old manifold gasket before installing the headers
• Inspect the cylinder-head sealing surface, manifold studs and threads before installation
• Fit a new RBG009 exhaust manifold/header gasket
• Trial-fit and correctly position the headers before cutting or welding the downstream exhaust
• Fabricate and weld the exhaust connection only after correct header position and clearance have been confirmed
• Check clearance around the steering, suspension, transmission, starter motor and bodywork
• Protect the painted header surfaces during trial fitting and installation
• Check all exhaust connections for leaks after installation
• Inspect and re-tighten the header mounting hardware after the initial heat cycles

Warranty & Compliance

Wildcat headers are covered by the applicable 2-year manufacturer's warranty subject to standard warranty terms and conditions.

Installation must retain the catalytic converter, oxygen sensor and any other emissions-control equipment required for the vehicle. Exhaust and emissions requirements vary between Australian states and territories, and the completed installation must comply with the regulations applicable in your state or territory.

FAQ

Which Mazda 323 models does WILD009 suit?
WILD009 is designed for selected Mazda 323 TX3 and Astina KF / KH models from 1994–1998 fitted with the 1.8L BP 16-valve DOHC petrol engine.

Which engine does WILD009 suit?
WILD009 is designed for the 1.8L BP 16-valve DOHC petrol engine in the specified Mazda 323 applications.

Are WILD009 headers a complete bolt-on installation?
No. Welding is required at the header outlet to connect WILD009 to the vehicle's existing exhaust system. Professional exhaust installation is recommended.

What size are the WILD009 header pipes?
WILD009 uses 1.50" primary pipes, 1.75" secondary pipes and a 2.00" outlet.

Which gasket does WILD009 use?
The recommended exhaust manifold/header gasket is RBG009, available separately.

What finish is used on WILD009?
The headers have a heat-resistant painted finish rated to approximately 600°C.

Are WILD009 headers Australian made?
Yes. Wildcat WILD009 headers are manufactured in Australia.

Can I pick up from the store?
Yes. Pick up is available but must be pre-arranged before 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. Where possible, we can arrange dispatch from the nearest available product location to help reduce freight costs and delivery times.

Do you ship to the USA?
Yes. Best Mufflers regularly ships exhaust systems and exhaust parts to customers throughout the United States.

Please note that import duties, tariffs, taxes, and customs clearance fees are not included in the product or shipping price. Once your order is processed and the applicable charges are calculated, we will send you a secure payment link to finalise the import duties and tariff charges before dispatch.

Customer Support

For phone orders, fitment advice or product enquiries, contact Best Mufflers:

Call Now: +61 2 9547 3511 Email Us

Best Mufflers
87A Planthurst Road, Carlton NSW 2218, Australia
Monday–Friday 8:00am–5:00pm by appointment
Exhaust Systems Since 1983