ST Suspensions ST XTA Coilover Kit

Part No: 18245814
Adjustable Damping with Top Mounts

Fits:

• 2005–2007 Subaru WRX STI (GD Chassis)

⚠️ Please allow 3-4 weeks to build and ship.

The ST Suspensions ST XTA Coilover Kit is a performance-oriented suspension system that pairs adjustable damping with premium front top mounts for improved alignment control and sharper handling. Designed for the 05–07 STI, this setup offers more tuning flexibility than fixed-damping kits while retaining excellent street comfort.

Built with galvanized steel strut housings and German-engineered components, the ST XTA delivers enhanced feedback, improved turn-in, and confidence-inspiring stability.

Lowering Range

• Front: ~0.8″ – 2.0″

• Rear: ~0.8″ – 2.0″

Height adjustability allows you to dial in stance and performance without compromising suspension travel.

Spring Rates (Verified for Part #18245814)

• Front: 400 lbs/in (~7.14 kg/mm)

• Rear: 285 lbs/in (~5.09 kg/mm)

Matched for a sporty feel with improved body control and reduced roll compared to stock suspension — while remaining manageable for daily driving.

Key Features

• Adjustable Damping – Fine-tune rebound for customized handling and comfort

• Front Top Mounts Included – Allows camber adjustment and sharper turn-in response

• Height Adjustable – Set ride height to your preference

• Twin-Tube Damper Design – Balanced performance and compliance

• Galvanized Steel Construction – Corrosion-resistant and durable

• Direct Bolt-On Installation – Engineered specifically for 05–07 STI

Performance Benefits

The ST XTA adds adjustable suspension tuning and alignment control for drivers who want enhanced handling precision beyond a fixed-damping setup. Ideal for daily drivers who push their cars harder — or weekend track use where tuning matters.

Why Choose ST XTA for Your 05–07 STI?

If you want performance suspension with adjustable damping and alignment control, the ST XTA is a versatile and effective upgrade that improves steering feedback, reduces body control issues, and enhances overall chassis response.