FORMULA, MCA, RIVAL Coilovers

Coilovers combine a coil spring and shock absorber into an integrated suspension assembly, providing a compact setup that can offer greater control over ride height and suspension behaviour.

Unlike a standard replacement suspension setup, many coilover kits are designed with adjustment in mind. Depending on the product, this can include ride height adjustment, damping adjustment or both, allowing the suspension setup to be tailored more closely to the driver's requirements.

Whether the goal is a lower stance, more responsive handling or a suspension setup suited to performance driving, the right coilovers can provide considerably more tuning flexibility than a conventional fixed suspension system.

What Are Coilovers?

The term coilover comes from "coil spring over shock". The coil spring is positioned around the damper body, creating a combined spring-and-damper assembly.

The two components still perform different jobs:

• The coil spring supports the vehicle's weight and compresses as the suspension moves.
• The damper controls suspension movement by managing how quickly the suspension compresses and rebounds.
• Adjustment mechanisms, where provided, allow certain aspects of the suspension setup to be changed.

A complete coilover suspension kit is designed so the spring and damper work together as a matched system.

Coilovers shouldn't be confused with ordinary coil springs or shock absorbers. While those components may be replaced individually in a conventional suspension system, a coilover brings the spring and damper together within a purpose-designed assembly.

How Do Coilovers Work?

Like conventional suspension, coilovers allow the wheels to move in response to bumps and changes in the road surface while helping maintain vehicle control.

When the suspension compresses, the coil spring stores energy. As it extends again, the damper controls that movement so the suspension doesn't continue oscillating excessively.

Where coilovers differ is in the level of tuning available.

Depending on the design, a coilover may allow adjustments to:

• Ride height
• Damping characteristics
• Spring preload
• Other suspension settings on more specialised systems

Not every coilover provides every type of adjustment. Some systems focus primarily on height adjustment, while others provide additional damping control.

Always check the specifications of the individual coilover kit to understand exactly what can be adjusted.

Why Upgrade to Coilovers?

Coilovers are generally chosen when a driver wants more control over the suspension setup than a standard replacement spring-and-shock combination provides.

Depending on the system and how it is configured, potential advantages include:

• Adjustable ride height for changing vehicle stance within the product's specified range.
• More controlled suspension movement through matched springs and dampers.
• Reduced body movement during cornering, braking and directional changes.
• More responsive handling for drivers looking for a performance-focused setup.
• Suspension tuning options to suit different driving requirements.
• A matched suspension package rather than selecting springs and dampers separately.

The result depends heavily on the coilover design and setup.

Simply making a suspension lower or firmer doesn't automatically improve its performance. Spring rates, damping, suspension travel, ride height and wheel alignment all need to work together.

Understanding Coilover Adjustability

Adjustability is one of the main reasons drivers consider coilover suspension, but the term adjustable coilovers can refer to several different features.

Ride Height Adjustment

Many coilovers allow the vehicle's ride height to be changed within a specified adjustment range.

This gives the driver greater control over vehicle stance and can also influence suspension behaviour.

Ride height shouldn't be adjusted purely on appearance. Excessive lowering can affect:

• Available suspension travel
• Ground clearance
• Wheel alignment
• Suspension geometry
• Tyre clearance
• Everyday usability

The appropriate setting should balance the desired height with the requirements of the suspension and how the vehicle will be driven.

Damping Adjustment

Some performance coilovers also provide adjustable damping.

Damping determines how the shock absorber controls suspension movement. Depending on the coilover design, adjustment may alter rebound, compression or a combined damping setting.

This gives the driver additional scope to change how the suspension responds.

However, damping adjustment isn't a feature of every coilover kit. Some systems use factory-set damping that has already been matched to the supplied spring rates.

Check the individual specifications rather than assuming every coilover is fully adjustable.

Coilovers for Street & Performance Driving

The right coilover setup depends heavily on how the vehicle is used.

Street Driving

For a regularly driven vehicle, ride quality remains an important consideration.

A street-focused coilover setup may prioritise:

• Controlled suspension movement
• Predictable handling
• Practical ride height
• Everyday ride quality
• Balanced spring and damper characteristics

The firmest available setting isn't necessarily the best choice for road use.

Performance Driving

Performance-oriented coilovers may place greater emphasis on suspension response, body control and adjustability.

Depending on the system, they may provide:

• Firmer spring rates
• Additional damping adjustment
• Greater tuning flexibility
• More performance-focused suspension characteristics

Some coilovers can suit both regular street driving and more performance-focused use, while others are designed with a much more specific purpose. Choosing according to intended use is therefore more useful than simply looking for the most adjustable system available.

Coilovers vs Springs & Shock Absorbers

Both conventional spring-and-shock suspension and coilovers can provide effective suspension performance, but they suit different requirements.

A traditional setup uses springs and dampers selected to work together, often with fixed ride height and damping characteristics.

Coilovers integrate these components and can provide additional adjustment.

Consider coilovers when you want:

• Greater control over ride height.
• A matched spring-and-damper package.
• More scope for suspension tuning.
• A performance-oriented suspension setup.
• Adjustment that isn't available from conventional replacement components.

If your goal is simply to restore worn factory suspension, a conventional replacement setup may still be appropriate. The best option depends on what you want the suspension to achieve.

Choosing the Right Coilover Kit

Start with how the vehicle will actually be used.

A daily-driven vehicle has different requirements from one primarily used for performance driving. Ride comfort, available adjustment and intended ride height should all influence the decision.

Before choosing a coilover kit, consider:

• Primary use: Daily driving, spirited road use or more performance-focused driving.
• Ride height: Decide whether adjustment is important and how much change is realistically required.
• Damping: Determine whether adjustable damping is useful for your intended setup.
• Ride quality: Consider how much comfort you want to retain.
• Fitment: Confirm that the kit is designed for the correct application.
• Supporting components: Check the condition of bushes, control arms, mounts and other suspension components before installation.
• Alignment requirements: Changing ride height can affect suspension geometry and wheel alignment.

Product specifications should always be checked carefully because adjustment range, spring rates, damping design and included components vary between coilover systems.

Coilover Installation & Wheel Alignment

Correct installation and setup are particularly important with adjustable suspension.

After fitting coilovers, ride height should be set consistently and checked to ensure sufficient suspension travel and clearance.

A professional wheel alignment should also follow installation because changing ride height can alter suspension geometry.

The alignment process allows relevant measurements such as camber, caster and toe to be checked and adjusted where the suspension provides the necessary adjustment.

Coilovers may also need further setup after installation depending on the system and intended use.

Getting the installation and alignment right allows the suspension to work as a complete package rather than treating the coilovers as an isolated upgrade.

Shop Coilovers at Fulcrum Suspensions

Find coilovers and coilover suspension kits at Fulcrum Suspensions for everything from everyday street setups to more performance-focused suspension upgrades.

We stock MCA coilovers and H&R coilovers, so you can compare setups across street, track and comfort-focused builds. For setups that don't need full coilovers, the rest of our suspension parts range covers springs, shocks and bushes.

Shopping with Fulcrum gives you access to specialist suspension knowledge alongside convenient purchasing options. You can order online for delivery or use Click & Fit to combine your suspension purchase with professional installation at a participating local workshop.