Ford Falcon FG XR6 2008-2014 4.0L Wildcat Exhaust Headers WILD718

Wildcat WILD718 exhaust headers (extractors) are designed for selected Ford Falcon FG XR6 models from 2008–2014 fitted with the 4.0L inline 6-cylinder petrol engine.

WILD718 features an interference-style header design with 44.5mm (1.75") primary pipes, 51mm (2.00") secondary pipes and a 63mm (2.50") outlet. This combination is designed for street performance applications, helping improve exhaust gas flow and scavenging for better torque, throttle response and usable engine performance.

The original exhaust manifold gasket is reused with this application. A direct-fit high-flow catalytic converter is also available for customers wanting to further improve exhaust flow when fitting WILD718 headers.

Please check availability and current lead time before ordering.

Key Features

• Designed for selected Ford Falcon FG XR6 2008–2014 applications
• Suits the 4.0L inline 6-cylinder petrol engine
• Interference-style header design for street performance applications
• 44.5mm (1.75") primary pipes
• 51mm (2.00") secondary pipes
• 63mm (2.50") outlet
• Designed to improve exhaust gas flow and scavenging
• Helps improve torque, throttle response and engine performance
• Direct-fit high-flow catalytic converter available
• Australian-made Wildcat performance headers

Construction

• 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
• Australian manufactured by Wildcat

Additional Options

• Direct-fit high-flow catalytic converter
• Replacement manifold studs and nuts where existing hardware is worn or corroded
• High-temperature exhaust gasket sealant where appropriate
• Performance exhaust system where further exhaust flow improvement is required
• Professional fitting service available from Best Mufflers

Vehicle Fitment

• Make: Ford
• Model: Falcon FG XR6
• Year Range: 2008–2014
• Engine Capacity: 4.0L
• Engine Configuration: Inline 6-cylinder petrol

Fitment Notes

• Designed for selected Ford Falcon FG XR6 models from 2008–2014 fitted with the 4.0L petrol engine
• Reuse the original exhaust manifold gasket
• A direct-fit high-flow catalytic converter is available for this header application
• Engine conversions, replacement engines or modified exhaust systems may affect fitment
• Please confirm your vehicle and engine configuration before ordering if unsure
• Please check availability and current lead time before ordering.

What’s Included

• 1 x Set Wildcat WILD718 exhaust headers / extractors
• Outlet components as supplied

Recommended With

• Direct-fit high-flow catalytic converter
• Replacement manifold studs and nuts where existing hardware is worn or corroded
• High-temperature exhaust gasket sealant where appropriate
• Quality performance exhaust system where further exhaust flow improvement is required

Why Good Headers & Exhaust Systems Matter

At 4,000 rpm, a 4.0L engine theoretically draws in approximately 8,000 litres of intake air per minute and can expel around 24,000 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
• Inspect and reuse the original exhaust manifold gasket where it remains in serviceable condition
• Inspect the cylinder-head sealing surface, manifold studs and threads before installation
• Trial-fit the headers before fully tightening the mounting hardware
• Check clearance around the engine mounts, steering, transmission, starter motor and surrounding components
• Protect the painted header surfaces during trial fitting and installation
• Ensure all oxygen sensors and emissions-control equipment are correctly installed and connected
• 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 sensors 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 Ford Falcon models does WILD718 suit?
WILD718 is designed for selected Ford Falcon FG XR6 models from 2008–2014 fitted with the 4.0L inline 6-cylinder petrol engine.

What size are the WILD718 header pipes?
WILD718 uses 44.5mm (1.75") primary pipes, 51mm (2.00") secondary pipes and a 63mm (2.50") outlet.

Do I need a new exhaust manifold gasket?
The Wildcat application specifies that the original exhaust manifold gasket is reused. The original gasket should be inspected before installation and only reused if it remains in serviceable condition.

Is a high-flow catalytic converter available for WILD718?
Yes. A direct-fit high-flow catalytic converter is available for this header application.

What finish is used on WILD718?
The headers have a heat-resistant painted finish rated to approximately 600°C.

Are WILD718 headers Australian made?
Yes. Wildcat WILD718 headers are manufactured in Australia.

Can Best Mufflers fit WILD718 headers?
Yes. Professional fitting is available at the Best Mufflers workshop in Carlton NSW by appointment.

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