ST Suspensions Coilovers & Parts

The best ST Suspensions upgrade for a 1992-95 Civic, 94-99 Integra, or 02-07 WRX/STI starts with fixing body roll and ride height: a set of ST anti-sway bars plus the X coilover kit. The X coilovers bring height adjustability for stance and corner balance, while the XTA steps up with adjustable rebound damping and camber plates — ideal for 05-07 STI owners chasing sharper turn-in. Pair them with fresh end links and an alignment for a complete handling package.

Coilovers replace the factory strut and spring with a single height-adjustable unit, letting you dial in ride height and corner weight without the compromises of lowering springs. Anti-sway bars tie the left and right sides of the suspension together, cutting body roll in corners while keeping the ride civil on straight roads. When shopping, look for vehicle-specific valving, a usable height range for street or track use, and camber adjustment if you plan on running aggressive alignment specs.

ST Suspensions is the value-focused sister brand of KW automotive, built around one idea: KW-developed damper technology at a street-friendly price point. The X coilover line, including the X kit for 02-07 WRX/STI, is a height-adjustable street setup designed to lower the car and sharpen handling while staying daily-drivable. The XTA line, like the 05-07 STI kit in this collection, adds adjustable rebound damping and camber plates so you can fine-tune front grip and turn-in for track days. Beyond coilovers, ST’s anti-sway bars cover a long list of 90s Japanese classics — 92-95 Civics, 93-97 Civic del Sol, 94-99 Integras, plus 95-99 Mitsubishi Eclipse and 2nd-gen Eagle Talon — making the brand a go-to for older chassis that mainstream brands have forgotten.

Browse the full Suspension catalog or the dedicated Sway Bars collection to complete your setup, and check the JDMuscle blog post How Can Aftermarket Parts Improve My Vehicle’s Handling for the theory behind flatter cornering. Popular picks include the ST Suspensions X Coilover Kit [02-07 WRX/STI], the XTA Coilover Kit [05-07 STI] with adjustable rebound and camber, and the Front Anti-Sway Bar for 92-95 Civic and 94-97 Integra.

Will the ST X coilover kit fit my car?

ST kits are vehicle-specific — the listings here call out exact years and models, such as 02-07 WRX/STI or 92-95 Civic. Check your year and model against the fitment notes before ordering.

What is the difference between the X and XTA coilovers?

The X is height-adjustable; the XTA adds adjustable rebound damping and camber plates, giving you more control over turn-in response and tire contact on track.

Do I need an alignment after installing coilovers?

Yes — changing ride height changes camber, toe, and caster, so a professional alignment is required after any coilover install to avoid uneven tire wear.

Are sway bars hard to install at home?

Sway bars are a bolt-on job on most supported chassis, usually done with hand tools in a few hours; end links may need to be replaced or upgraded at the same time.