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

The GRB/GVB hatch and GRF/GVF saloon share a hard truth every WRX STI owner knows: the factory struts were tuned around a compromise between rally-bred body control and daily ride quality, and on 2007-2014 cars with 100,000-plus miles on them that compromise has usually collapsed into wallow. Symmetrical AWD means load transfer happens through all four corners at once under power, so worn damping doesn’t just soften the ride – it blurs the point-and-shoot response that made this chassis famous in the first place.

The Super Sport coilover kit puts that control back where you can adjust it. It’s built for fast-road driving with regular track days mixed in, not a full-time circuit car, so the priority is a damper that copes with British B-roads on Monday and a track day at Cadwell on Saturday without needing to be swapped out in between.

What this coilover does for your 2007-2014 Subaru Impreza STI Grb/gvb/grf/gvf 4WD

With 36-way damping adjustment, you can run the STI noticeably firmer for a trackday without living with a jarring ride on the commute – winding in compression and rebound independently lets you chase out the last of the factory strut’s sponginess without turning the car harsh. Ride height adjustment brings the option to drop the centre of gravity and tighten the wheel gap, which matters on a chassis that came from the factory sitting slightly high for rally-spec ground clearance the road car never needed. Because the AWD system loads all four corners under acceleration, tightened, consistent damping response translates directly into less pitch under braking and less squat under boost – the car settles rather than heaving. Owners running these on a well-used GRB or GVF report the biggest single improvement isn’t outright grip, it’s predictability: the front end telegraphs what it’s doing instead of arriving at the limit as a surprise.

About the Super Sport coilover

The Super Sport damper is built around eliminating the harshness and discomfort that comes with worn or overly stiff aftermarket struts on rough UK road surfaces – a common complaint on cars that have already had one round of cheap coilovers fitted and removed. The 36-way adjustment knob lets you retune compression and rebound to suit anything from a motorway cruise to a trackday setup without swapping hardware. Ride height is independently adjustable at each corner, so stance and corner-weighting can be dialled in separately from the damping curve. It’s positioned as a dual-purpose unit: firm enough to hold its own on a track day, compliant enough that it doesn’t beat up a car that’s still doing the weekly commute. For a GRB or GVF STI that’s covered serious mileage on its original dampers, that range covers the two things most owners actually want from a suspension upgrade – sharper response and a ride they can live with every day.

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

This kit is built for the Subaru Impreza STI GRB/GVB (hatch) and GRF/GVF (saloon) chassis codes across the 2007-2014 model years, covering the 4WD drivetrain used across this generation. Confirm your specific chassis code against your V5C before ordering, as GRB/GVB and GRF/GVF share running gear but differ in body style.

What buyers also search for

• Subaru Impreza STI suspension upgrade for road and track use
• GRB GVF coilover kit with adjustable ride height for stance and corner weight
• Subaru STI 4WD damping setup that holds up to repeat trackday sessions
• Impreza STI 2007-2014 coilover options for daily driving and weekend circuit work

Spec your damping range and ride height for your GRB, GVB, GRF or GVF STI – build yours below.