Is a strut brace a modification?

Yes. A strut brace is generally considered a modification to a vehicle's stock configuration because it adds a new structural component that alters chassis stiffness and handling characteristics. Some cars may include a factory brace as part of a performance package or trim, in which case it's not aftermarket, but it still constitutes a modification relative to the base configuration.

What is a strut brace?

A strut tower brace (often called a strut brace) is a bar that connects the tops of the front or rear suspension strut towers. By tying the towers together, it aims to reduce chassis flex under load, which can lead to more predictable steering and handling. Braces are typically made from aluminum or steel and come in various designs, depending on the vehicle.

Key design features

Common attributes include simple bolt-on installation, minimal weight, and compatibility with factory components. Some braces include bushings or padding to avoid contact with nearby parts, while others rely on direct metal-to-metal contact across the towers.

Is it a modification?

As a concept, a modification is any change from the factory configuration. A strut brace fits this definition because it adds a new part and changes how the chassis behaves under load. In some cases, a car's manufacturer may offer a brace as a factory option or part of a performance package; in those cases, it is still a modification relative to the base model, but it is an OEM rather than aftermarket modification.

Factory vs aftermarket

OEM braces built into certain trims or packages are designed to integrate with the vehicle's materials and tolerances. Aftermarket braces are third-party components chosen by the owner to achieve similar goals but may vary in fit, finish, and weight. Either way, installation alters the baseline configuration.

Why people install strut braces

The following points summarize typical motivations and expected effects of installing a strut brace.

• Enhanced chassis rigidity: Linking the strut towers reduces flex, potentially improving handling consistency during cornering.


• Potential for improved steering feedback: Some drivers perceive more precise steering due to reduced deflection


• Cost and weight considerations: Braces are usually lightweight and relatively inexpensive compared with full suspension upgrades


• Varied impact by model: The actual benefits depend on the car's original stiffness and how aggressively it’s driven

Conclusion: In practice, the effect can range from noticeable on some older or more flexible platforms to minimal on newer, already-stiff chassis.

Potential drawbacks and considerations

Before evaluating the decision, review the potential downsides and practical factors associated with strut braces.

• Limited gains on modern platforms: Cars with rigid chassis may show little to no improvement in everyday driving


• Fitment and quality matter: A poorly fitting brace can cause clearance issues, rub, or noise; choose quality OEM-style or well-reviewed aftermarket options


• Warranty and service implications: Aftermarket modifications can affect warranty terms; ensure proper installation and understand the policy


• Maintenance and inspection: Bolts can loosen over time; periodic checks are advisable

Bottom line: Evaluate your goals, budget, and the specific vehicle before adding a strut brace. For some drivers, the modification is worth it; for others, it may be unnecessary.

Summary

A strut brace is generally a modification to a vehicle's stock configuration that aims to increase chassis stiffness and potentially improve handling. Its practical impact varies by model, trim, and driving style; some drivers notice meaningful differences, while on others the gains are subtle. When considering installation, weigh the expected performance benefits against cost, fitment, warranty implications, and maintenance requirements.

Are front strut braces worth it?

By keeping the chassis more rigid, strut bars help keep your wheels engaged with the road surface and minimize the likelihood of body roll, understeer, and other undesirable handling characteristics. You don't have to be a race car driver to appreciate the benefits of a well-designed strut bar setup.

Does a strut brace improve handling?

With a strut bar, cornering is easier and the handling is more predictable. You have more peace of mind with the addition of a strut brace because it can also be regarded as a safety upgrade, as it allows for the forces to be evenly distributed during a collision which could reduce the extent of Injuries.

What is a modified strut?

Instead of the coil spring riding directly on the strut, the "modified strut" setup uses a conventional lower A-arm and coil-spring assembly, with the strut acting as both the shock absorber and the upper locating point for the spindle. That makes servicing easier and makes the lower A-arm the load-bearing member.

What is the purpose of a strut brace?

A strut brace connects the top of the left and right strut towers to reinforce the vehicle's chassis and improve handling. This is achieved by reducing chassis flex and preventing the strut towers from deforming, which keeps the suspension geometry more stable, especially during cornering. The result is a more direct steering feel, increased stability, and more precise handling. 
This video explains the function of a strut bar: 53sShopLifeTVYouTube · Jul 16, 2023
How it works

• Connects strut towers: A rigid bar links the top of the left and right suspension struts, which are located near the wheel wells. 
• Adds rigidity: This connection adds a structural reinforcement to the chassis, creating a more rigid platform for the suspension system. 
• Reduces flex: It minimizes the movement and flex that occurs in the strut towers during driving, which can otherwise alter the suspension's alignment. 
• Improves suspension performance: By stabilizing the strut towers, the brace allows the suspension to perform its job more effectively, leading to better handling and a more stable ride. 

This video explains the function of a strut bar: 1mJC MediaYouTube · Feb 18, 2021
When it's most effective

• Aggressive driving: The benefits of a strut brace are most noticeable during spirited driving on winding roads or on a track. 
• Older vehicles: It can be particularly beneficial for older cars that may have developed some chassis flex over time. 
• MacPherson strut suspensions: It is especially effective in vehicles with this type of suspension because the strut towers bear the entire vertical suspension load. 

What it doesn't do

• Improve speed: A strut brace doesn't inherently make a car faster, but rather makes it more predictable and stable at its limits. 
• Replace a sway bar: A strut bar is different from a sway bar (or anti-roll bar), which is designed to flex and connects the left and right wheels to control body roll.