Toyota Hilux RN85 RN90 1988-1997 2.4L 22R 2WD Wildcat Exhaust Headers WILD125

Wildcat WILD125 headers (extractors) are designed for Toyota Hilux RN85 and RN90 2WD models from 08/1988 to 07/1997 fitted with the 2.4L 22R SOHC petrol engine.

WILD125 features a Tri-Y interference design developed for street performance applications, with mandrel-bent 41mm primary pipes, 44mm secondary pipes and a 51mm outlet.

2WD MODELS ONLY – fits vehicles with the torsion-bar front suspension.

Please check availability and current lead time before ordering.

Key Features

• Suits Toyota Hilux RN85 and RN90 2WD models
• Designed for the 2.4L 22R SOHC petrol engine
• Tri-Y interference design for street performance applications
• Mandrel-bent pipework
• 41mm (1⅝") primary pipes
• 44mm (1¾") secondary pipes
• 51mm (2") outlet
• Fits torsion-bar front suspension
• Suits manual and automatic transmission models
• Australian Made

Construction

Wildcat WILD125 headers feature a mandrel-bent Tri-Y design, 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: RN85 / RN90
• Year Range: 08/1988-07/1997
• Engine: 2.4L / 2367cc 22R
• Engine Type: SOHC 8-valve petrol
• Drive: 2WD / rear-wheel drive only
• Transmission: Manual or automatic
• Air Conditioning: Compatible
• Power Steering: Compatible

Fitment Note: WILD125 is specifically listed for 2WD RN85 and RN90 Hilux models and fits vehicles using the torsion-bar front suspension. It is not the WILD125 application for 4WD Hilux models.

Header Specifications

• Part Number: WILD125
• Design: Tri-Y interference design
• Pipe Construction: Mandrel bent
• Primary Pipes: 1⅝" (approximately 41mm)
• Secondary Pipes: 1¾" (approximately 44mm)
• Outlet: 2" (approximately 51mm)
• Front Suspension: Fits torsion-bar front end
• Manufacture: Australian Made

Fitment Notes

2WD models only. For 4WD Hilux models fitted with the 2.4L 22R engine, a different Wildcat header application is used.

Confirm the vehicle chassis code, engine and drive configuration before ordering, particularly where vehicles have undergone engine or suspension modifications.

What's Included

Wildcat WILD125 header assembly. Gaskets and other installation components should not be assumed to be included unless specifically shown or stated with the product.

Recommended With

RBG125S – exhaust manifold/header gasket specified in the Wildcat application catalogue for WILD125.

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, torsion-bar 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 WILD125 suit both RN85 and RN90 Hilux models?
Yes. The Wildcat application catalogue lists WILD125 for RN85 and RN90 2WD Hilux models fitted with the 2.4L 22R engine.

Does WILD125 fit a 4WD Hilux?
No. WILD125 is the 2WD application. The 4WD 2.4L 22R Hilux uses a different Wildcat header application.

Does WILD125 fit the torsion-bar front end?
Yes. The Wildcat application catalogue specifically states that WILD125 fits with the torsion-bar front suspension.

Does WILD125 suit manual and automatic models?
Yes. Both manual and automatic transmission applications are listed.

What gasket suits WILD125?
The Wildcat application catalogue specifies RBG125S.

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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