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

The GRB/GVB/GRF/GVF-generation Impreza STI carries a stiffened unibody and symmetrical AWD layout that trace straight back to a car built for WRC stages, but the factory dampers were never given the travel to use that heritage once the tarmac runs out. Ruts, compression jumps and standing water on a forest stage or a snow-covered special ask for suspension movement the road-going setup simply doesn’t have.

The XYZ Racing Pro Racing Gravel/Snow coilover is built around that exact problem. Longer-travel front and rear units give the GRB/GVB/GRF/GVF chassis room to absorb the hit instead of transmitting it straight into the AWD driveline, keeping the car composed through the kind of surface changes that catch out road-spec dampers within a single stage.

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

Extended front and rear stroke buys the STI’s AWD system a bigger margin before a wheel unloads over a jump or a rut, which matters directly for traction out of loose-surface corners where the centre diff is already working hard to split torque. A larger internal reservoir of suspension oil and nitrogen gas reduces the rate at which oil temperature climbs during a long stage or rallycross moto, so damping force stays consistent from the first corner to the last rather than fading as the fluid heats up. The three external adjustment knobs let you set compression and rebound separately for gravel, snow or a rough circuit surface, rather than living with one compromise setting. On a car whose factory ride height and spring rates were tuned for smooth Japanese roads, that combination changes how much of the STI’s AWD grip actually reaches the ground once the surface stops being flat.

About the Pro Racing Gravel/Snow coilover

This is a purpose-designed rally and rallycross damper, not a road coilover with softer springs bolted on. The extra front and rear travel is there specifically to give the car a bigger buffer before the suspension bottoms out over jumps and compressions, which is what keeps the chassis stable when the surface underneath it keeps changing. XYZ Racing increased the internal suspension oil and nitrogen gas volume over a standard road unit, which slows the rate of oil temperature rise during sustained hard use and helps the damper hold its characteristics across a full stage rather than softening halfway through. The three adjustment knobs run through a deliberately small oil passage; on big hits you may hear a faint click or tick as oil moves through that restriction, which is a normal by-product of the design rather than a fault. Built for loose-surface events, this coilover is equally at home absorbing kerbs and bumps on a rough circuit.

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

Fits the SU10 chassis code covering the Impreza STI GRB, GVB, GRF and GVF variants – both hatch and saloon body styles – built between 2007 and 2014. This kit is specified for the 4WD drivetrain fitted across this range.

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Spec your GRB/GVB/GRF/GVF STI for gravel, snow or rallycross – configure yours below.