Cusco Type ALC OS Front Strut Brace for Mazda RX-8 SE3P

Improve the front-end rigidity and driving response of your Mazda RX-8 with the Cusco Type ALC OS Front Strut Brace with BCS, part number 460 535 AMN.

Designed specifically for the Mazda RX-8 SE3P powered by the 13B-MSP RENESIS rotary engine, this premium chassis brace connects the front suspension mounting points, helping the body shell resist flex when subjected to cornering and braking forces.

The RX-8 is already well known for its balanced chassis and responsive handling, but reducing movement between the front suspension towers can provide a more direct and consistent connection between the suspension and chassis. This makes the Cusco brace a particularly useful upgrade for enthusiast-driven road cars, modified RX-8s and vehicles used for occasional track days.

Type ALC OS Construction

Cusco’s Type ALC OS design combines an aluminium oval-section centre bar with a carbon-style/carbon-fibre outer finish. The construction is intended to provide high rigidity without the unnecessary weight associated with heavier steel reinforcement.

The distinctive finish also makes the brace a highly visible engine-bay upgrade, complementing other Cusco chassis and suspension components.

Integrated Brake Cylinder Stopper

A major advantage of 460535AMN over a basic front strut brace is the incorporated BCS – Brake Cylinder Stopper.

When the brake pedal is pressed firmly, particularly during performance driving, small amounts of movement can occur around the brake master-cylinder mounting area. The Cusco BCS provides additional support in this area, helping reduce unwanted movement and producing a more consistent brake-pedal feel.

It does not increase the braking power of the vehicle by itself, but it can improve the driver’s sense of pedal response and consistency when braking hard.

Sharper Chassis Response

By connecting the front suspension towers, the brace can help minimise localised chassis flex. Potential benefits include:

• More direct steering response
• Improved suspension consistency
• Greater front-end rigidity
• More predictable handling during rapid direction changes
• Improved brake pedal consistency from the integrated BCS
• Greater driver feedback during spirited driving

The improvement will be most noticeable on enthusiast-driven vehicles and cars fitted with performance suspension, uprated tyres, coilovers or other chassis modifications.

Designed for the Mazda RX-8 SE3P

Cusco lists this brace specifically for the Mazda RX-8 SE3P with the 13B-MSP 1.3-litre RENESIS rotary engine.

This makes it suitable for the principal UK RX-8 derivatives using the SE3P chassis, including 192 PS and 231 PS cars and UK special editions based on the same chassis.

Important Installation Information

This is a vehicle-specific brace rather than a universal strut bar.

Cusco specifies that modification of the engine cover is required during installation.

For this reason, professional installation is recommended if you are not comfortable modifying the relevant trim/engine-cover section.

Always inspect the vehicle for non-standard intake systems, engine-bay modifications, aftermarket reservoirs or other components that could affect clearance before installation.

For modified RX-8s, please contact us with your vehicle details if you are unsure about compatibility.

Key Features

• Genuine Cusco Japan chassis upgrade
• Designed for Mazda RX-8 SE3P
• Compatible with the 13B-MSP RENESIS rotary engine
• Front upper strut tower brace
• Type ALC OS specification
• Aluminium oval-section centre bar
• Carbon-fibre/carbon appearance outer finish
• Integrated BCS Brake Cylinder Stopper
• Helps improve front chassis rigidity
• Can sharpen steering and chassis response
• Helps reduce unwanted suspension-tower movement
• BCS helps minimise brake master-cylinder movement
• Suitable for fast-road and track-focused RX-8 builds
• Vehicle-specific mounting brackets
• Premium engine-bay appearance
• Engine-cover modification required for installation

Technical Specifications

Manufacturer: Cusco
Brand: CUSCO
Manufacturer Part Number / MPN: 460 535 AMN
Store SKU: 460535AMN
Product Type: Front Strut Tower Brace
Cusco Type: Type ALC OS
Position: Front
Brace Configuration: 2-point front strut tower brace
BCS: Yes – Brake Cylinder Stopper included
Centre Bar: Aluminium oval-section construction
Outer Finish: Carbon-fibre / carbon-style finish
Vehicle: Mazda RX-8
Chassis Code: SE3P
Engine: 13B-MSP RENESIS
Nominal Engine Capacity: 1.3 litre / 1308cc twin-rotor rotary
Vehicle Market: Suitable for applicable UK RHD SE3P vehicles
Installation: Vehicle-specific fitment
Modification Required: Yes – engine-cover modification specified by Cusco
EAN/JAN: 4996338043252

Vehicle Fitment / Compatibility

Confirmed Application

Mazda RX-8 – SE3P – 13B-MSP RENESIS

Cusco specifies part 460 535 AMN for the SE3P RX-8 using the 13B-MSP engine.

For UK vehicles this includes the standard 192 PS and 231 PS models together with UK-market special editions based on the same SE3P platform.

UK derivatives represented within the SE3P range

• RX-8 192 PS
• RX-8 231 PS
• RX-8 Evolve
• RX-8 PZ
• RX-8 Nemesis
• RX-8 Kuro
• RX-8 40th Anniversary
• RX-8 R3

Important: Registration year alone should not be used to determine compatibility. Confirm the vehicle is an SE3P RX-8 with the 13B-MSP engine, particularly where a vehicle has been imported or extensively modified.

Frequently Asked Questions

Does the Cusco 460535AMN fit a UK Mazda RX-8?

Yes. Cusco specifies 460 535 AMN for the Mazda RX-8 SE3P fitted with the 13B-MSP RENESIS engine. This chassis and engine combination covers the principal UK-market RX-8 models. Always confirm the chassis and vehicle configuration before ordering.

Will this fit both the Mazda RX-8 192 PS and 231 PS?

Both UK 192 PS and 231 PS RX-8 models are based on the SE3P platform and use versions of the 13B-MSP RENESIS engine. The Cusco application is specified against the SE3P/13B-MSP platform rather than horsepower alone.

Does the Cusco brace fit the RX-8 R3?

Cusco’s application covers the SE3P 13B-MSP RX-8 range, which includes the later R3 platform. Because R3 vehicles have several differences from earlier cars, it is still advisable to check the engine bay for previous modifications before installation.

What does the BCS on this Cusco strut brace mean?

BCS stands for Brake Cylinder Stopper. It provides additional support around the brake master cylinder, helping reduce movement when significant brake-pedal pressure is applied and contributing to a more consistent pedal feel.

Will a front strut brace make my Mazda RX-8 handle better?

A strut brace increases the connection between the front suspension towers and can help reduce localised chassis movement. On performance-driven cars this can improve steering response, consistency and driver feedback, particularly when used with upgraded suspension and tyres.

Is the Cusco 460535AMN a direct bolt-on installation?

The mounting system is vehicle-specific, but Cusco specifically states that engine-cover modification is required when fitting this application. Installation should therefore be carried out carefully and professional fitting is recommended where appropriate.

Is this brace suitable for a track-day Mazda RX-8?

Yes. Increased chassis rigidity and reduced brake master-cylinder movement can be particularly beneficial during repeated cornering and braking. It is equally suitable for enthusiast-driven road cars.

Is this a replacement for worn suspension components?

No. A strut brace is a chassis performance upgrade rather than a replacement for worn dampers, bushes, ball joints, springs or other suspension components. Any worn components should be repaired before assessing the effect of chassis upgrades.