Toyota Hilux RN105 RN110 1988-1997 2.4L 22R 4WD Wildcat Exhaust Headers WILD126

Wildcat WILD126 headers (extractors) are designed for Toyota Hilux RN105 and RN110 4WD models from 08/1988 to 07/1997 fitted with the 2.4L 22R petrol engine.

WILD126 features a Tri-Y interference design developed for street performance applications, with mandrel-bent 41mm primary pipes, 44mm secondary pipes and a 51mm outlet.

4WD MODELS ONLY.

Please check availability and current lead time before ordering.

Key Features

• Suits Toyota Hilux RN105 and RN110 4WD models
• Designed for the 2.4L 22R petrol engine
• Tri-Y interference design for street performance applications
• Mandrel-bent pipework
• 41mm (1⅝") primary pipes
• 44mm (1¾") secondary pipes
• 51mm (2") outlet
• Suits manual and automatic transmission models
• Australian Made

Construction

Wildcat WILD126 headers are manufactured from mild steel and feature a mandrel-bent Tri-Y configuration, using 41mm primary pipes feeding into 44mm secondary pipes and a 51mm outlet.

Wildcat headers are manufactured in Australia by the same Australian manufacturer responsible for Genie headers.

Additional Options

Please contact Best Mufflers for current availability and advice regarding compatible exhaust components for your Toyota Hilux.

Vehicle Fitment

• Make: Toyota
• Model: Hilux
• Series: RN105 / RN110
• Year Range: 08/1988-07/1997
• Engine: 2.4L / 2367cc 22R
• Fuel: Petrol
• Drive: 4WD only
• Transmission: Manual or automatic

Fitment Note: WILD126 is specifically designed for RN105 and RN110 4WD Hilux models. The RN85/RN90 2WD 22R application uses Wildcat WILD125.

Header Specifications

• Part Number: WILD126
• Design: Tri-Y interference design
• Construction: Mild steel
• Pipe Construction: Mandrel bent
• Primary Pipes: 1⅝" (approximately 41mm)
• Secondary Pipes: 1¾" (approximately 44mm)
• Outlet: 2" (approximately 51mm)
• Manufacture: Australian Made

Fitment Notes

4WD models only. WILD126 is not the correct header for RN85/RN90 2WD Hilux models.

Confirm the chassis code, 22R engine and 4WD configuration before ordering, particularly on older Hilux vehicles that may have undergone engine, suspension or exhaust modifications.

What's Included

Wildcat WILD126 header assembly. Gaskets and other installation components should not be assumed to be included unless specifically shown or stated with the product.

Recommended With

DSF057 – exhaust manifold/header gasket for the Toyota 2.4L 22R application.

Why Good Headers & Exhaust Systems Matter

The 2.4L 22R engine theoretically draws approximately 4,800 litres of intake air per minute at 4,000 rpm at 100% volumetric efficiency. Once combustion has taken place, the hot exhaust gases occupy substantially more volume as they travel through the exhaust system.

Using an illustrative exhaust temperature of approximately 600°C, this represents around 14,400 litres of exhaust gas per minute. 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

Professional installation is recommended. Check exhaust alignment, mounting points, drivetrain clearance and surrounding components during installation.

Lubricate threaded fasteners with WD-40 or a similar penetrating lubricant before removal to assist with easier removal and installation. After installation and several heat cycles, inspect the system for exhaust leaks and recheck accessible fasteners where appropriate.

Warranty & Compliance

Installation and use must comply with applicable Australian state or territory regulations, including requirements relating to emissions equipment, catalytic converters, exhaust noise and vehicle modifications.

FAQ

Is this product currently available?
Availability and lead times can vary. Please check availability and current lead time before ordering.

Does WILD126 suit both RN105 and RN110 Hilux models?
Yes. WILD126 is listed for RN105 and RN110 4WD Hilux models fitted with the 2.4L 22R petrol engine.

Does WILD126 fit a 2WD Hilux?
No. WILD126 is the 4WD application. RN85/RN90 2WD Hilux models fitted with the 2.4L 22R use Wildcat WILD125.

Does WILD126 suit manual and automatic models?
Yes. Both manual and automatic transmission applications are listed.

What gasket suits the 22R engine?
DSF057 is the exhaust manifold/header gasket listed for the Toyota Hilux 2.4L 22R application.

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

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