XYZ Racing Racing Spec Coilovers — Subaru IMPREZA STI GRB/GVB/GRF/GVF 4WD 2007-2014

The GRB/GVB STI’s symmetrical AWD system pushes power through all four corners simultaneously, which means chassis balance under braking and corner entry has to be tuned as a system rather than adjusted at one axle and hoped for at the other. XYZ Racing’s Racing Spec coilover is built for exactly that discipline: a track-focused platform aimed at drivers running the STI in time-attack or wheel-to-wheel sessions, not fast-road duty.

This isn’t a general fast-road upgrade dressed up in racing branding. Racing Spec settings come from XYZ’s own participation in circuit racing, including WTCC-level competition, so the damping curves are derived from cars that were actually turning laps under load rather than from a bench-test spreadsheet.

What this coilover does for your 2007-2014 Subaru IMPREZA STI GRB/GVB/GRF/GVF 4WD

With the STI’s weight transferring hard across four driven wheels under trail-braking, a Racing Spec damper keeps the front struts settled enough that turn-in stays predictable instead of vague. The rear end, which on this generation of STI can get unsettled under quick direction changes on a bumpy circuit, gets the same track-derived control, so mid-corner stability holds up through repeat laps rather than fading after a handful of sessions. Ride height and camber adjustment through the coilover body let you set a track-day geometry baseline and hold it, which matters on a chassis where alignment drift under heavy use directly costs corner speed. The result on your STI is a car that changes direction with less of the float that stock or fast-road dampers allow, and holds its line through the kind of high-load, high-frequency inputs a circuit day throws at a 4WD platform.

About the Racing Spec coilover

Racing Spec is XYZ Racing’s dedicated circuit-racing damper, developed through direct involvement in touring car competition rather than adapted from a road-going product line. Because the base spec is proven on race cars, XYZ also offers a bespoke path for owners running heavier modifications: if your STI carries factory-level or A-class racing upgrades, XYZ can build custom valving around the specific parts fitted to your car and the circuit you intend to run. That means sending over details of your upgrades and your target track lets XYZ tailor the damper rather than force a one-size-fits-all track setting onto a heavily modified GRB or GVB. For most owners the standard Racing Spec calibration, drawn from that racing-team development work, is the starting point – the custom route exists for cars that have moved well past stock.

Fitment for the Subaru IMPREZA STI GRB/GVB/GRF/GVF 4WD (2007-2014)

This Racing Spec coilover is built for the Subaru Impreza STI chassis codes GRB, GVB, GRF and GVF, covering the 4WD models produced from 2007 to 2014. Confirm your car sits within this chassis-code and year range before ordering, as spec and mounting differ across other Impreza generations.

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Spec your Racing Spec coilover for the GRB/GVB/GRF/GVF STI and configure yours below.