Mitsubishi Pajero NH NJ NK 3.0L 6G72 Round Port Headers – Wildcat WILD284

Wildcat WILD284 exhaust headers (extractors) are designed for selected Mitsubishi Pajero NH, NJ and NK models fitted with the 3.0L V6 6G72 petrol engine using round exhaust ports from 1991 to 1993.

Featuring an interference-style extractor design, WILD284 replaces the restrictive factory exhaust manifolds with larger, smoother-flowing pipework. The design helps improve exhaust gas flow and scavenging to reduce restriction and improve torque, throttle response and overall engine performance, making these headers suitable for street, touring and 4WD applications.

Please check availability before ordering.

Key Features

• Designed for selected Mitsubishi Pajero NH, NJ and NK models
• Suits the 3.0L V6 6G72 petrol engine with round exhaust ports
• Interference-style design for street performance
• 1.58" primary pipes
• 2.00" secondary pipes
• 2.25" outlets
• Direct-fit design for applicable vehicles
• Suits manual and automatic transmissions
• 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
• Heat-resistant painted finish rated to approximately 600°C
• Precision mounting flanges designed for the applicable round-port 6G72 cylinder heads

Additional Options

• DSF065: Replacement exhaust manifold/header gaskets available separately

Vehicle Fitment

• Make: Mitsubishi
• Model: Pajero
• Series: NH / NJ / NK
• Engine: 6G72 V6 petrol
• Capacity: 3.0L
• Exhaust Port: Round port
• Year Range: 1991–1993
• Transmission: Manual and automatic

Fitment Notes

• IMPORTANT: WILD284 is for the round-port version of the 3.0L 6G72 V6
• Confirm the shape of the cylinder-head exhaust ports before ordering
• Designed as a direct-fit header set for the applicable vehicle and engine configuration
• Suits applicable manual and automatic models
• Replacement manifold/header gaskets – see DSF065
• Please check availability before ordering

What’s Included

• Wildcat WILD284 header / extractor assemblies

Recommended With

• DSF065 exhaust manifold/header gaskets
• Replacement exhaust flange gaskets where required
• Replacement manifold studs and nuts where existing hardware is worn or corroded
• Free-flowing exhaust system for further reduction in exhaust restriction

Why Good Headers & Exhaust Systems Matter

At 4,000 rpm, the 3.0L 6G72 V6 draws in approximately 6,000 litres of intake air per minute and expels around 18,000 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. Confirm the round-port cylinder-head configuration and trial-fit both headers and exhaust connections before fully tightening the system. Protect the painted surfaces during installation to minimise scratching or damage.

Warranty & Compliance

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

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

FAQ

What Mitsubishi Pajero does WILD284 suit?
WILD284 is designed for selected Mitsubishi Pajero NH, NJ and NK models fitted with the 3.0L V6 6G72 petrol engine with round exhaust ports from 1991 to 1993.

Why is the round-port specification important?
Different versions of the 6G72 can use different exhaust-port and manifold configurations. WILD284 is specifically designed for the round-port application, so the cylinder-head exhaust-port configuration should be confirmed before ordering.

Will WILD284 fit both manual and automatic Pajeros?
Yes. WILD284 is designed to suit applicable manual and automatic models.

Are WILD284 headers a direct fit?
Yes. WILD284 is designed as a direct-fit header set for the applicable Pajero 3.0L 6G72 round-port application.

What size are the header pipes?
WILD284 uses 1.58" primary pipes, 2.00" secondary pipes and 2.25" outlets.

What gaskets are required?
The recommended replacement exhaust manifold/header gaskets are DSF065, available separately.

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.

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