Suspension Secrets Adjustable Camber & Caster Plates - BMW E90 / E92 M3

Suspension Secrets Adjustable Camber & Caster Plates – BMW E90 / E92 M3

Increase front-end grip, reduce understeer and improve steering feel with Suspension Secrets Adjustable Camber & Caster Plates for the BMW E90 and E92 M3.

As standard, the E9x M3 is relatively limited in front camber, which can cause the outside front tyre to roll onto its outer edge during hard cornering. This reduces the effective contact patch and contributes to understeer.

Suspension Secrets developed these camber and caster plates to provide significantly more front geometry control, allowing the chassis to be set up for everything from daily road use through to aggressive track driving.

The plates also incorporate additional caster to improve steering feel, high-speed confidence and dynamic camber gain without affecting ride height or the factory bump-to-droop relationship.

Why Upgrade to Adjustable Camber & Caster Plates?

Front camber and caster have a major influence on front-end grip, steering response and tyre behaviour.

Potential benefits include:

• Increased front axle camber
• Reduced understeer
• Improved mid-corner grip
• Better front tyre utilisation
• Improved steering feel
• Increased steering response
• Additional positive caster
• Improved dynamic camber gain
• Reduced outer-edge tyre wear under hard driving
• Greater setup flexibility for road and track

Key Features

• Designed for BMW E90 / E92 M3
• Adjustable front camber
• Integrated caster offset
• Suitable for road and track setups
• Compatible with standard springs and dampers
• Compatible with lowering springs
• Compatible with coilovers using OEM-style top mounts
• Does not alter ride height
• Maintains standard bump/droop ratio
• Integrated spring platform
• Allows spring assembly to rotate independently
• Helps prevent spring bind
• High-performance Rodoball bearings
• Toothed adjustment slots
• Camber settings designed to resist slipping under hard use
• Billet aircraft-grade 6082 T6 aluminium construction
• Corrosion-resistant stainless steel components
• Designed and manufactured in-house in the UK
• Lifetime warranty including bearings

The Standard E9x M3 Understeer Issue

The E90 and E92 M3 are extremely capable cars, but limited front camber can restrict how effectively the front tyres work during hard cornering.

As the car rolls into a corner, the outside front tyre can lean towards its outer shoulder.

This can reduce contact across the inside section of the tyre and result in:

• Reduced front-end grip
• Increased understeer
• Higher outer-edge tyre temperatures
• Increased outer shoulder wear
• Reduced confidence at the limit

Increasing negative camber helps keep the tyre working more effectively through the corner.

Adjustable Front Camber

The Suspension Secrets plates provide multiple camber positions, giving you much greater control over the front alignment.

This makes them suitable for:

• Daily-driven road cars
• Fast-road setups
• Weekend cars
• Clubsport builds
• Trackday cars
• More aggressive track geometry

Rather than forcing the vehicle into one fixed setting, the camber can be tailored around the way the car is actually used.

Increased Mid-Corner Grip

Correct front camber allows the outside front tyre to maintain a more effective contact patch under lateral load.

Potential benefits include:

• Greater front axle grip
• Reduced understeer
• Improved mid-corner confidence
• More precise steering
• Better tyre utilisation

Reduced Understeer

One of the primary objectives of these camber plates is to reduce the natural understeer tendency of the E9x M3.

With more suitable front camber, the tyre is better able to remain flat against the road through loaded corners.

This helps the front axle maintain grip as cornering forces increase.

Improved Front Tyre Wear

Insufficient camber can heavily overload the outside edge of the front tyres during fast driving.

By increasing negative camber to suit the intended use, the tyre can be loaded more evenly through the corner.

This can help reduce excessive outer-edge wear during:

• Trackdays
• Fast-road driving
• Repeated high-load cornering

The ideal setting will depend on road use, track use and tyre specification.

Additional Caster

Suspension Secrets also incorporates additional caster into the design.

During development, their engineers found that the added caster significantly improved steering response and feedback.

Potential benefits include:

• Improved steering feel
• Better self-centring
• Increased high-speed stability
• More confidence through fast corners
• Greater dynamic camber gain

Dynamic Camber Gain

Caster affects how camber changes as steering angle is applied.

With additional positive caster, the outside front wheel gains more useful negative camber as it turns into a corner.

This can increase front-end grip without requiring an excessively aggressive static camber setting.

The result is a strong balance between:

• Cornering grip
• Braking traction
• Steering feel
• Road usability

Improved Steering Feel & Response

The combination of additional caster and spherical bearing support can make the front axle feel more direct and communicative.

Potential improvements include:

• Sharper turn-in
• Better feedback
• More immediate steering response
• Greater confidence at speed

Compatible With Standard Suspension

The camber and caster plates are designed to work directly with the factory suspension system.

They are compatible with:

• OEM springs
• OEM dampers
• Factory-style suspension assemblies

This allows greater geometry control without requiring a complete suspension replacement.

Compatible With Lowering Springs

The plates are also compatible with lowering springs.

This makes them particularly useful for fast-road cars where ride height has been reduced but the factory-style suspension architecture is retained.

Compatible With OEM-Top-Mount Coilovers

The plates can also be used with aftermarket coilovers designed to retain the OEM top mount arrangement.

Examples include systems such as:

• KW V3
• Other compatible OEM-top-mount coilovers

Exact compatibility should always be checked before ordering.

Maintains Standard Ride Height

The Suspension Secrets design does not alter the ride height of the vehicle.

This is useful for owners who want increased geometry adjustment without unintentionally changing the final suspension height.

Maintains Standard Bump/Droop Ratio

The plates are designed to retain the same bump and droop relationship as the factory top mount.

This helps preserve the intended suspension travel characteristics.

Integrated Spring Platform

The assembly includes an integrated spring platform that allows the spring to rotate independently of the camber plate.

This mirrors the principle of the OEM design and helps prevent spring bind during steering and suspension movement.

Reduced Spring Bind

Allowing the spring assembly to rotate independently helps avoid unwanted torsional loading through the spring.

This contributes to:

• Smoother steering movement
• Better suspension operation
• Reduced unwanted friction
• More consistent damper response

High-Performance Rodoball Bearings

Suspension Secrets uses large high-performance Rodoball bearings in the camber plate assembly.

These bearings are designed to provide the precision of a spherical bearing while helping keep operating noise to a minimum.

Potential benefits include:

• Improved damper response
• Greater steering precision
• Better feedback
• Reduced bearing movement

Low-NVH Bearing Design

The Rodoball bearings are designed specifically to reduce the unwanted knocking or harshness sometimes associated with motorsport-style top mounts.

This makes the plates suitable for both:

• Road cars
• Track-focused builds

There may still be some change in refinement compared with a completely standard rubber-mounted top mount, but the design is intended to keep this to a minimum.

Toothed Camber Adjustment Slots

The camber adjustment slots use a toothed design.

This helps prevent the selected camber position from moving when the vehicle is subjected to:

• High cornering loads
• Track use
• Hard braking
• Aggressive driving

This provides greater confidence that the chosen geometry setting will remain consistent.

Fixed Caster Offset

The caster offset is machined into a fixed position for ease of use.

This gives the benefit of increased caster without requiring constant adjustment or complicated setup.

Designed for Road & Track Use

The wide adjustment range makes these plates suitable for:

• Daily road cars
• Fast-road builds
• Weekend cars
• Clubsport setups
• Trackday cars
• Semi-slick tyre setups

The geometry can be tailored to suit the intended use rather than forcing one compromise setting.

Motorsport Geometry for Road Cars

The design applies motorsport-inspired geometry principles while retaining compatibility with road-oriented suspension systems.

This makes the plates a strong upgrade for owners who want meaningful chassis improvement without moving to a fully dedicated race setup.

Professional Installation Recommended

Professional installation is strongly recommended.

After fitting, the car should receive:

• Full suspension inspection
• Camber adjustment
• Caster verification
• Toe adjustment
• Steering clearance checks
• Full wheel alignment

Geometry Setup Essential

A professional geometry setup is essential after installation.

The final settings should be tailored around:

• Road or track use
• Tyre specification
• Ride height
• Suspension setup
• Driving style
• Desired chassis balance

Vehicle Fitment

BMW M3 E90 / E92

Compatible models:

• BMW E90 M3 Saloon
• BMW E92 M3 Coupe

What's Included?

Each kit includes:

• 1 pair Suspension Secrets Adjustable Camber & Caster Plates

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