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Subaru WRX STI (2015–2021) Suspension & Handling FAQ's

Please read our FAQs page to find out more.

What’s the best first handling mod for a VA‑chassis STI?

Tires and alignment. Then consider coilovers with sensible rates, sway bars, and key bushings to sharpen response without ruining ride quality.

Do camber plates or arms help the STI on street tires?

Yes—added camber range lets the STI keep a larger contact patch under load without excessive shoulder wear.

How aggressive can I go with a street alignment on the STI?

Moderate negative camber with near‑zero toe keeps stability and tire life. Track use warrants more camber and slight toe adjustments for turn‑in.