• Fully assembled, ready-to-install coilover system
• Independently adjustable ride height, front and rear
• Progressive-rate springs matched to application-specific valving
• Bolt-in installation using factory mounting points

A Genuine Daily-Driver Coilover, Not a Track-Only Compromise

Tein's Street Basis Z line is built specifically as an entry point into genuine coilover suspension without sacrificing the everyday comfort a daily-driven Subaru needs. Rather than a stiff, track-focused setup that beats you up on a rough commute, Street Basis Z pairs application-specific valving with progressive-rate springs tuned for a noticeably sportier feel that still stays livable day to day. That balance is exactly what makes it one of Tein's most popular entry-level coilover lines. It's the kind of upgrade that quietly does its job without ever needing a second thought.

Real Ride Height Adjustment, Genuinely Bolt-In

Ride height is independently adjustable front and rear, letting you dial in your exact stance rather than being locked into a single fixed drop. Installation uses the factory mounting points for a genuine bolt-in fit, so there's no cutting, welding, or custom fabrication required to get the kit installed correctly. It's a straightforward, proven path from factory suspension to a genuine coilover setup. That's real, functional engineering, not just a marketing claim.

Straight From Subispeed

A genuinely livable entry-level coilover setup for 2008-2014 STI — real ride height adjustability without sacrificing daily comfort.

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