Wildcat Exhaust Headers – WILD147

These Wildcat Extractors are purpose-built for the Toyota LandCruiser BJ40–BJ42 running the legendary B-series diesel engines. Designed and manufactured in Australia, they improve exhaust gas scavenging while maintaining strength for harsh off-road environments.

Design & Construction

• Interference-style header design for off-road performance
• Heavy-duty steel construction
• Optimised pipe lengths for torque-focused diesel engines
• Built to suit factory engine bay and chassis clearances

Pipe Specifications

• Primary pipes: 44.5 mm (1.75")
• Secondary pipes: 50.8 mm (2.00")
• Collector outlet: 57.1 mm (2.25")

Engine Airflow Reference

B / 3B diesel engines typically move approximately:
• 3.0 L: ~6,000 L/min intake airflow at 4,000 rpm
• 3.4 L: ~6,800 L/min intake airflow at 4,000 rpm

These headers are sized to comfortably support this airflow while improving exhaust velocity and low-RPM torque — ideal for towing and off-road use.

Fitment Notes

• Fits Toyota LandCruiser BJ40 & BJ42
• Suitable for B 3.0 L and 3B 3.4 L diesel engines
• Gasket required: RBG147S (sold separately)

Installation Tips

Lubricate all threads with WD-40 or similar prior to installation for easier fitment and future removal.

What’s Included

• Wildcat Exhaust Headers – WILD147

Note: Verify emissions and registration compliance in your state.

Customer Support

For phone orders, advice, or part enquiries – contact us:

📞 Call Now: +61 2 9547 3511 ✉️ Email Us

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87A Planthurst Road, Carlton NSW 2218, Australia
Exhaust Systems Since 1983