Part Number: 1820256826

Description: ST XTA Plus 3 Coilover Suspension Galvanized Steel 23+ Toyota GR Corolla

Fitment: 23+ Toyota GR Corolla

Details:

The Toyota GR Corolla already delivers an impressive combination of turbocharged performance, GR-FOUR all-wheel drive, and everyday practicality. For drivers who want greater suspension control without turning their GR Corolla into a track-only build, ST Suspensions has developed a serious upgrade: the ST XTA Plus 3 coilover kit.

Developed and manufactured in Germany, the XTA Plus 3 is the most advanced coilover system in the ST Suspensions lineup. It combines adjustable ride height, three-way damping adjustment, a linear racing spring system, and aluminum Unibal top mounts in one street-and-track package.

Built for the Street and the Track

A performance suspension often has to balance two very different jobs. It needs to provide responsive handling and body control during spirited driving while remaining composed enough for regular street use.

The ST XTA Plus 3 gives GR Corolla owners the ability to tune that balance instead of accepting a single fixed setup. Its dampers provide independent adjustment of:

• Low-speed rebound damping: 16 clicks

• Low-speed compression damping: 24 clicks

• High-speed compression damping: 24 clicks

Low-speed damping primarily influences chassis movements caused by steering, braking, acceleration, and weight transfer. High-speed compression damping helps manage faster suspension movements caused by bumps, rough pavement, and expansion joints. Together, these adjustments allow the suspension to be tailored for daily driving, canyon roads, autocross, or track-day use.

Greater Control Without Sacrificing Versatility

Rebound adjustment controls how quickly the suspension extends after being compressed. This can influence stability during transitions and how planted the vehicle feels through changes in direction.

Compression adjustment works alongside the spring rate to manage how quickly the suspension compresses. It affects body roll, brake dive, acceleration squat, turn-in response, and the way the chassis reacts to road imperfections.

Because these adjustments are independent, owners can make targeted changes instead of simply making the entire suspension softer or firmer. That flexibility is what separates the XTA Plus 3 from a conventional height-adjustable coilover kit.

Adjustable Unibal Top Mounts

The front struts include aluminum Unibal top mounts as standard equipment. Compared with conventional rubber-mounted components, these mounts reduce unwanted movement and provide a more direct connection between the suspension and chassis.

For the Toyota GR Corolla application, the front mounts also provide adjustable camber. This gives owners and alignment technicians another valuable tuning tool, especially when preparing the car for aggressive street driving or track use.

Linear Racing Springs and Durable Construction

ST equips the XTA Plus 3 with a two-piece linear racing spring system. A linear spring maintains a consistent spring rate throughout its travel, producing predictable suspension behavior and making setup changes easier to evaluate.

Other construction highlights include:

• Galvanized and multi-sealed steel strut housings

• Corrosion-resistant composite spring perches

• Integrated dust protection and bump stops

• Optional spring colors and personalized spring markings

• Application-specific damper tuning

Adjustable GR Corolla Ride Height

According to ST Suspensions, the tested adjustment range for the Toyota GR Corolla application is:

• Front lowering: 25–40 mm, approximately 1.0–1.6 inches

• Rear lowering: 25–45 mm, approximately 1.0–1.8 inches

This allows owners to reduce wheel gap and lower the car’s center of gravity while retaining the ability to fine-tune its stance. Actual ride height, wheel clearance, alignment requirements, and legal restrictions can vary by vehicle configuration and location. Fitment should always be confirmed before ordering, and a professional alignment is recommended after installation.

Is the ST XTA Plus 3 Right for Your GR Corolla?

This kit is best suited to the enthusiast who wants more than an appearance-focused drop. It is designed for drivers who want meaningful control over steering response, weight transfer, body movement, and the suspension’s reaction to different road surfaces.

It is an especially compelling option for:

• Dual-purpose street and track builds

• Autocross and time-attack enthusiasts

• Drivers running performance tires

• Owners who want adjustable front camber

• Enthusiasts who enjoy testing and refining their suspension setup