ERS 800HP Evo 4–9 RS Rear Differential Conversion Kit Bushes

Description

ERS 800HP RS Rear Differential Conversion Bushes for Mitsubishi Lancer Evolution 4–9

Take your Mitsubishi Lancer Evolution’s rear drivetrain to the next level with the ERS 800HP Evo 4–9 RS Rear Differential Conversion Kit — Bushes. Designed for serious performance applications, these bushes are an important component of the ERS RS rear differential conversion system, providing a stronger and more durable mounting solution for high-power Evolution builds.

Designed around applications supporting up to 800HP, this upgrade is aimed at Evolution enthusiasts who are moving away from the factory AYC rear differential configuration and converting to an RS-style rear differential.

Whether you’re building a high-powered street car, track machine, rally car, drag-oriented AWD build, or a complete drivetrain conversion, upgrading the differential mounting bushes is an important step toward creating a stronger and more reliable rear drivetrain.

Product Details

• Brand: ERS
• Product: RS Rear Differential Conversion Bushes
• Application: Mitsubishi Lancer Evolution
• Fitment: Evo 4 / 5 / 6 / 7 / 8 / 9
• Configuration: RS rear differential conversion
• Rated application: Up to 800HP
• Position: Rear differential mounting
• Purpose: Differential conversion and mounting support
• Ideal for: High-power, performance, track, rally and competition builds

Designed for High-Power Evolution Builds

The rear differential mounting system is subjected to significant forces as engine torque is transferred through the AWD drivetrain.

As horsepower and torque increase, these forces become even more important. Hard acceleration, launches, aggressive cornering, high-grip tyres, and motorsport use can place substantial loads through the differential and its mounting points.

The ERS conversion bushes are designed for enthusiasts building serious-performance Evolution models and provide an upgraded mounting solution as part of an RS differential conversion.

With an advertised 800HP application, this kit is particularly suited to owners who have moved well beyond standard factory power levels and require drivetrain components capable of supporting a high-performance build.

RS Differential Conversion

Many Mitsubishi Lancer Evolution models were equipped with AYC rear differentials, while the RS specification uses a different rear differential arrangement.

Converting to an RS differential can be an attractive option for performance enthusiasts looking for a simpler, robust, motorsport-oriented rear differential setup.

However, the conversion requires more than simply changing the differential itself. The mounting arrangement and associated components must also be addressed.

These ERS bushes form part of that conversion system, helping provide the appropriate mounting support for the RS differential installation.

Suitable for Evo 4–9

The kit is designed for a broad range of Mitsubishi Lancer Evolution generations:

• Evolution IV / Evo 4
• Evolution V / Evo 5
• Evolution VI / Evo 6
• Evolution VII / Evo 7
• Evolution VIII / Evo 8
• Evolution IX / Evo 9

This makes the kit an excellent solution for enthusiasts working across the Evolution 4–9 platform, particularly those undertaking major drivetrain upgrades or converting an AYC-equipped vehicle to an RS configuration.

Why Upgrade the Differential Bushes?

Differential bushes have an important job: they help locate the differential while controlling movement between the differential assembly and the chassis/subframe.

As the drivetrain applies torque, the differential naturally experiences forces that can cause movement within its mounting system. Excessive movement can contribute to unwanted drivetrain motion and place additional stress on surrounding components.

Upgraded bushes can provide a more secure mounting arrangement and are especially relevant when the vehicle’s power output is significantly higher than factory specifications.

For an 800HP-level build, attention to drivetrain mounting components is essential when creating a properly engineered performance package.

Ideal for Serious Performance Applications

These bushes are suited to a wide range of high-performance Evolution projects, including:

• 800HP Evo builds
• High-torque AWD applications
• RS differential conversions
• AYC-to-RS conversions
• Track cars
• Rally cars
• Drag-oriented AWD builds
• Time attack cars
• Competition vehicles
• High-power street cars
• Full drivetrain rebuilds
• Motorsport projects

They can also be an excellent addition to a complete rear differential upgrade where the differential, mounting system, subframe, driveshaft, axles, and associated drivetrain components are being inspected or upgraded together.

Strengthen the Foundation of Your AWD Drivetrain

Building a high-powered Evolution is about more than increasing engine output. Once power levels become substantial, every part of the drivetrain needs to be considered as part of the overall system.

The engine may produce the power, but that power must be transferred through the clutch, transmission, transfer case, driveshafts, differential, axles, and finally to the wheels.

The rear differential mounting system is an important part of that chain.

Using upgraded ERS bushes as part of an RS conversion can help provide a stronger foundation for the rear differential and complement other drivetrain upgrades.

Excellent During a Full Restoration or Conversion

If you’re already removing the rear differential or subframe, installing upgraded conversion bushes at the same time is a practical approach.

It allows the rear mounting system to be refreshed while the components are accessible and can help avoid having to dismantle the rear drivetrain again later.

This makes the kit particularly suitable for:

Complete Evolution restorations
Refresh the rear drivetrain while restoring the chassis.

AYC-to-RS conversions
Install the appropriate mounting components alongside the RS differential.

High-power builds
Upgrade the differential mounting system to complement increased engine output.

Motorsport builds
Prepare the rear drivetrain for repeated high-load use.

Important Fitment Information

Please verify your exact Evolution generation, rear subframe configuration, and differential type before ordering.

The RS and AYC differential configurations are not interchangeable, and vehicles may have been modified during their lifetime. Always confirm that your vehicle is being converted to or already uses the appropriate RS-style rear differential arrangement.

The 800HP rating should be regarded as an application/reference rating rather than a guarantee that every drivetrain component will safely withstand 800HP. Actual durability depends on torque output, drivetrain configuration, vehicle weight, tyre grip, driving conditions, installation quality, and the condition of the surrounding components.

For high-power applications, it is recommended that the entire drivetrain and mounting system be inspected and engineered appropriately.

Installation

Professional installation is recommended for this type of drivetrain conversion.

Before installation, inspect the differential, rear subframe, mounting points, fasteners, driveshaft, axles, and surrounding chassis components for damage, cracks, corrosion, or excessive wear.

Correct installation and appropriate torque settings are essential for the safe and reliable operation of the rear drivetrain.

Build Your Evo for Serious Power

The ERS 800HP Evo 4–9 RS Rear Differential Conversion Kit — Bushes is designed for Evolution enthusiasts who are taking their AWD drivetrain beyond standard specifications.

Whether you’re converting an Evo from AYC to RS, building an 800HP performance car, preparing a competition vehicle, or carrying out a comprehensive rear drivetrain rebuild, upgraded differential bushes provide an important part of the mounting system.

Designed for Mitsubishi Lancer Evolution 4–9 RS differential conversion applications, these ERS bushes are an ideal upgrade for high-power Evolution builds where stronger and more secure rear differential mounting is required.