Wildcat WILD065 Toyota Hilux & Toyota 4Runner 4WD Exhaust Headers (1982–1989)

Wildcat WILD065 Exhaust Headers are designed specifically for Toyota Hilux and Toyota 4Runner four-wheel drive models powered by the dependable 3Y, 3YC, 4Y and 4YC petrol engines. Suitable for both leaf spring and coil spring front suspension models, these Australian-made extractors provide a direct bolt-on replacement for the restrictive factory exhaust manifold.

The proven interference header design promotes efficient exhaust scavenging by helping remove exhaust gases more effectively from each cylinder. This reduces pumping losses, improves cylinder filling and delivers stronger throttle response, improved low and mid-range torque and smoother overall engine performance whether on-road or off-road.

Why Good Headers & Exhaust Systems Matter

At 4000rpm, the Toyota 3Y & 4Y engines move approximately 4,400L/min intake airflow and expel around 13,200L/min exhaust gas (@600°C).
At 5000rpm, airflow increases to approximately 5,500L/min intake and 16,500L/min exhaust output.

Efficient headers improve scavenging, reduce restriction and unlock usable horsepower and torque.

Key Features

• Australian Made
• Direct bolt-on replacement
• Interference header design
• Improved exhaust scavenging
• Increased throttle response
• Improved low and mid-range torque
• Heavy-duty welded construction
• Ideal for street, touring and off-road applications
• 1.50" primary pipes
• 1.75" secondary pipes
• 2.00" outlet

Vehicle Compatibility

• Toyota Hilux LN65 4WD (1982–1989)
• Toyota Hilux YN60 4WD (1982–1989)
• Toyota Hilux YN63 4WD (1982–1989)
• Toyota Hilux YN67 4WD (1982–1989)
• Toyota Hilux YH65 4WD (1982–1989)
• Toyota 4Runner 4WD (1982–1989)
• 3Y Petrol
• 3YC Petrol
• 4Y Petrol
• 4YC Petrol
• Leaf spring front suspension
• Coil spring front suspension

Specifications

• Part Number: WILD065
• Manufacturer: Wildcat Headers by Genie
• Country of Manufacture: Australia
• Header Design: Interference
• Primary Pipes: 1.50"
• Secondary Pipes: 1.75"
• Outlet: 2.00"
• Recommended Gasket: DSF050

Installation Notes

• Use penetrating lubricant on all manifold fasteners before removal.
• Inspect cylinder head sealing surface before installation.
• Fit new exhaust gasket (DSF050 recommended).
• Tighten fasteners evenly to manufacturer's specifications.
• Recheck fastener torque after initial heat cycle.

Frequently Asked Questions

Will these fit both leaf spring and coil spring front suspension models?

Yes. WILD065 has been designed to suit both leaf spring and coil spring front suspension Toyota Hilux and Toyota 4Runner 4WD models listed above.

Are these genuine Australian-made headers?

Yes. Wildcat Headers are proudly manufactured in Australia by Genie Headers.

What benefits do interference headers provide?

The interference design improves exhaust scavenging, helping increase throttle response, improve low and mid-range torque and reduce exhaust restriction compared to the factory manifold.

Is the gasket included?

No. The recommended gasket for this header is DSF050.

Are these a direct bolt-on fit?

Yes. WILD065 is manufactured as a direct-fit replacement for the original exhaust manifold on the listed applications.

Do you ship Australia-wide?

Yes. We ship Australia-wide using trusted freight carriers.

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.

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