Frame

🦾 Chassis Category – Rigidity, precision and control of dynamic behavior

At STR Performance , we know that true performance doesn't just come from the engine. A rigid, balanced, and well-tuned chassis is the foundation of any high-performance car. By strengthening your vehicle's structure and optimizing its suspension, you gain driving precision, cornering stability, and responsiveness in all situations: track, drift, race, or sporty road driving.

Our Chassis category brings together the best parts to strengthen, adjust, and sharpen your car's dynamics, while ensuring safety and reliability. Whether you're a trackday enthusiast, a racing driver, or a sports car enthusiast, each component has a key role to play.

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🔧 Chassis subcategories – Technical details and advantages

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📐 Strut bars (front, rear, lower)

Strut bars are structural reinforcements that connect the two ends of a running gear (often the shock towers), in order to limit chassis twisting.

They improve lateral rigidity, reduce parasitic movements of the front or rear axle, and improve steering precision.

They exist in the following versions:

• Upper front

• Upper rear

• Lower cradle

SEO Keywords: strut mount, strut tower reinforcement, chassis rigidity, upper stabilizer bar

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🛠️ Reinforced chassis silent blocks (polyurethane or rigid)

The original silent blocks, often made of rubber, deform under stress, which can create inaccuracies or losses of efficiency.

Polyurethane silent blocks offer better resistance to deformation and allow for better transmission of forces between the chassis and the running gear.

Uses:

• Silent blocks for arms, triangles, stabilizer bars, engine/gearbox mounts

• Versions: road sport, track, competition

SEO keywords: reinforced chassis silentbloc, polyurethane silentblocs, performance silentbloc kit, rigid ground connection

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🧱 Reinforced engine and gearbox mounts

Rigid or semi-rigid engine mounts improve power transmission to the ground and prevent unwanted movements of the powertrain.

Ideal as a complement to a sports transmission or heavy engine preparation.

Benefits :

• Reduced “slack” when changing gears

• Better accuracy in load transfers

SEO keywords: reinforced engine mount, sports gearbox mount, polyurethane engine mount, rigid transmission

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🎯 Reinforced suspension arms and wishbones

The suspension arms (or wishbones) are often the weak points on the track or in drifting.

The reinforced or adjustable versions allow:

• Better suspension geometry

• Adjustable camber

• Greater strength against mechanical constraints

Used to correct angles and gain grip, especially after lowering or widening tracks.

SEO keywords: reinforced control arm, adjustable wishbone, competition suspension, adjustable camber

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🔧 Uniball ball joints / reinforced ball joints

Uniball (spherical) ball joints replace conventional ball joints and provide a direct metal-to-metal connection. This eliminates unwanted play and provides instant response from the running gear.

Essential for drift, circuit or run use where precision of support is essential.

SEO keywords: car uniball joint, reinforced suspension ball joint, sport uniball link, competition ball joint kit

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🦿 Camber shims & chassis adjustment kits

Camber shims and adjustment plates allow you to correct wheel angles (camber, caster) after modifying the suspension (lowering, coilovers, etc.).

This improves tire wear, cornering handling and driving precision.

SEO keywords: car camber shims, suspension adjustment, performance geometry, sport camber

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🏁 Complete chassis reinforcement kits / Competition pack

STR Performance also offers complete chassis reinforcement packs, specially designed for track, drift or highly prepared vehicles.

They include: bars, silent blocks, ball joints, reinforced arms and sometimes even underbody reinforcement plates.

SEO keywords: chassis reinforcement kit, car track pack, complete chassis preparation, racing chassis

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🚗 Vehicle compatibility

Our chassis parts are compatible with the most popular performance models:

Volkswagen Golf GTI / R, Audi S3 / RS3, Clio RS, Megane RS, Civic Type R, 208 GTI, BMW 1 Series M / M3, GR Yaris, Supra, 350Z, 370Z, and many more.

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✅ Why choose STR Performance for your chassis?

• 🧩 Products tested in extreme conditions: drift, grip, run, track

• 🔧 Selection of reliable brands and proven parts

• 🎯 Compatibility and settings suitable for all levels of preparation

• 📦 Fast delivery – installation instructions included

• 🛠️ Technical support from chassis and vehicle dynamics enthusiasts